diff --git a/README.md b/README.md
index 1ecec1c..5a9b19a 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ formatting.
 **Notes:**
 
 * *^ No linters for text or Vim help filetypes are enabled by default.*
-* *! These linters check only files on disk. See `:help ale-lint-file-linters`*
+* *!! These linters check only files on disk. See `:help ale-lint-file-linters`*
 
 | Language | Tools |
 | -------- | ----- |
@@ -75,39 +75,39 @@ formatting.
 | Bash | shell [-n flag](https://www.gnu.org/software/bash/manual/bash.html#index-set), [shellcheck](https://www.shellcheck.net/) |
 | Bourne Shell | shell [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/) |
 | C | [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint), [gcc](https://gcc.gnu.org/), [clang](http://clang.llvm.org/), [clang-format](https://clang.llvm.org/docs/ClangFormat.html)|
-| C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html)[!](#table-notes), [clangtidy](http://clang.llvm.org/extra/clang-tidy/)[!](#table-notes), [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint)[!](#table-notes), [gcc](https://gcc.gnu.org/), [clang-format](https://clang.llvm.org/docs/ClangFormat.html)|
+| C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html)[!!](#table-notes), [clangtidy](http://clang.llvm.org/extra/clang-tidy/)[!!](#table-notes), [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint)[!!](#table-notes), [gcc](https://gcc.gnu.org/), [clang-format](https://clang.llvm.org/docs/ClangFormat.html)|
 | C# | [mcs](http://www.mono-project.com/docs/about-mono/languages/csharp/) |
 | Chef | [foodcritic](http://www.foodcritic.io/) |
 | CMake | [cmakelint](https://github.com/richq/cmake-lint) |
 | CoffeeScript | [coffee](http://coffeescript.org/), [coffeelint](https://www.npmjs.com/package/coffeelint) |
-| Crystal | [crystal](https://crystal-lang.org/)[!](#table-notes) |
+| Crystal | [crystal](https://crystal-lang.org/)[!!](#table-notes) |
 | CSS | [csslint](http://csslint.net/), [stylelint](https://github.com/stylelint/stylelint) |
 | Cython (pyrex filetype) | [cython](http://cython.org/) |
 | D | [dmd](https://dlang.org/dmd-linux.html) |
 | Dart | [dartanalyzer](https://github.com/dart-lang/sdk/tree/master/pkg/analyzer_cli) |
 | Dockerfile | [hadolint](https://github.com/lukasmartinelli/hadolint) |
-| Elixir | [credo](https://github.com/rrrene/credo), [dogma](https://github.com/lpil/dogma)[!](#table-notes) |
+| Elixir | [credo](https://github.com/rrrene/credo), [dogma](https://github.com/lpil/dogma)[!!](#table-notes) |
 | Elm | [elm-make](https://github.com/elm-lang/elm-make) |
 | Erb | [erb](https://github.com/jeremyevans/erubi), [erubis](https://github.com/kwatch/erubis) |
 | Erlang | [erlc](http://erlang.org/doc/man/erlc.html), [SyntaxErl](https://github.com/ten0s/syntaxerl) |
 | Fortran | [gcc](https://gcc.gnu.org/) |
 | FusionScript | [fusion-lint](https://github.com/RyanSquared/fusionscript) |
-| Go | [gofmt](https://golang.org/cmd/gofmt/), [go vet](https://golang.org/cmd/vet/), [golint](https://godoc.org/github.com/golang/lint), [gometalinter](https://github.com/alecthomas/gometalinter)[!](#table-notes), [go build](https://golang.org/cmd/go/)[!](#table-notes), [gosimple](https://github.com/dominikh/go-tools/tree/master/cmd/gosimple), [staticcheck](https://github.com/dominikh/go-tools/tree/master/cmd/staticcheck) |
+| Go | [gofmt](https://golang.org/cmd/gofmt/), [go vet](https://golang.org/cmd/vet/), [golint](https://godoc.org/github.com/golang/lint), [gometalinter](https://github.com/alecthomas/gometalinter)[!!](#table-notes), [go build](https://golang.org/cmd/go/)[!!](#table-notes), [gosimple](https://github.com/dominikh/go-tools/tree/master/cmd/gosimple), [staticcheck](https://github.com/dominikh/go-tools/tree/master/cmd/staticcheck) |
 | GraphQL | [gqlint](https://github.com/happylinks/gqlint) |
 | Haml | [haml-lint](https://github.com/brigade/haml-lint)
 | Handlebars | [ember-template-lint](https://github.com/rwjblue/ember-template-lint) |
-| Haskell | [ghc](https://www.haskell.org/ghc/), [stack-ghc](https://haskellstack.org/), [stack-build](https://haskellstack.org/)[!](#table-notes), [ghc-mod](https://github.com/DanielG/ghc-mod), [stack-ghc-mod](https://github.com/DanielG/ghc-mod), [hlint](https://hackage.haskell.org/package/hlint), [hdevtools](https://hackage.haskell.org/package/hdevtools) |
+| Haskell | [ghc](https://www.haskell.org/ghc/), [stack-ghc](https://haskellstack.org/), [stack-build](https://haskellstack.org/)[!!](#table-notes), [ghc-mod](https://github.com/DanielG/ghc-mod), [stack-ghc-mod](https://github.com/DanielG/ghc-mod), [hlint](https://hackage.haskell.org/package/hlint), [hdevtools](https://hackage.haskell.org/package/hdevtools) |
 | HTML | [HTMLHint](http://htmlhint.com/), [proselint](http://proselint.com/), [tidy](http://www.html-tidy.org/) |
 | Idris | [idris](http://www.idris-lang.org/) |
 | Java | [checkstyle](http://checkstyle.sourceforge.net), [javac](http://www.oracle.com/technetwork/java/javase/downloads/index.html) |
 | JavaScript | [eslint](http://eslint.org/), [jscs](http://jscs.info/), [jshint](http://jshint.com/), [flow](https://flowtype.org/), [prettier](https://github.com/prettier/prettier), prettier-eslint, prettier-standard, [standard](http://standardjs.com/), [xo](https://github.com/sindresorhus/xo)
 | JSON | [jsonlint](http://zaa.ch/jsonlint/) |
-| Kotlin | [kotlinc](https://kotlinlang.org)[!](#table-notes), [ktlint](https://ktlint.github.io)[!](#table-notes) see `:help ale-integration-kotlin` for configuration instructions
+| Kotlin | [kotlinc](https://kotlinlang.org)[!!](#table-notes), [ktlint](https://ktlint.github.io)[!!](#table-notes) see `:help ale-integration-kotlin` for configuration instructions
 | LaTeX | [chktex](http://www.nongnu.org/chktex/), [lacheck](https://www.ctan.org/pkg/lacheck), [proselint](http://proselint.com/) |
 | Lua | [luacheck](https://github.com/mpeterv/luacheck) |
 | Markdown | [mdl](https://github.com/mivok/markdownlint), [proselint](http://proselint.com/), [vale](https://github.com/ValeLint/vale) |
 | MATLAB | [mlint](https://www.mathworks.com/help/matlab/ref/mlint.html) |
-| Nim | [nim check](https://nim-lang.org/docs/nimc.html)[!](#table-notes) |
+| Nim | [nim check](https://nim-lang.org/docs/nimc.html)[!!](#table-notes) |
 | nix | [nix-instantiate](http://nixos.org/nix/manual/#sec-nix-instantiate) |
 | nroff | [proselint](http://proselint.com/)|
 | Objective-C | [clang](http://clang.llvm.org/) |
@@ -118,13 +118,13 @@ formatting.
 | Pod | [proselint](http://proselint.com/)|
 | Pug | [pug-lint](https://github.com/pugjs/pug-lint) |
 | Puppet | [puppet](https://puppet.com), [puppet-lint](https://puppet-lint.com) |
-| Python | [autopep8](https://github.com/hhatto/autopep8), [flake8](http://flake8.pycqa.org/en/latest/), [isort](https://github.com/timothycrosley/isort), [mypy](http://mypy-lang.org/), [pycodestyle](https://github.com/PyCQA/pycodestyle), [pylint](https://www.pylint.org/)[!](#table-notes), [yapf](https://github.com/google/yapf) |
+| Python | [autopep8](https://github.com/hhatto/autopep8), [flake8](http://flake8.pycqa.org/en/latest/), [isort](https://github.com/timothycrosley/isort), [mypy](http://mypy-lang.org/), [pycodestyle](https://github.com/PyCQA/pycodestyle), [pylint](https://www.pylint.org/)[!!](#table-notes), [yapf](https://github.com/google/yapf) |
 | R | [lintr](https://github.com/jimhester/lintr) |
 | ReasonML | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-integration-reason-merlin` for configuration instructions
 | reStructuredText | [proselint](http://proselint.com/) |
 | RPM spec | [rpmlint](https://github.com/rpm-software-management/rpmlint) (disabled by default; see `:help ale-integration-spec`) |
-| Ruby | [brakeman](http://brakemanscanner.org/)[!](#table-notes), [rails_best_practices](https://github.com/flyerhzm/rails_best_practices)[!](#table-notes), [reek](https://github.com/troessner/reek), [rubocop](https://github.com/bbatsov/rubocop), [ruby](https://www.ruby-lang.org) |
-| Rust |  cargo[!](#table-notes) (see `:help ale-integration-rust` for configuration instructions), [rls](https://github.com/rust-lang-nursery/rls), [rustc](https://www.rust-lang.org/) |
+| Ruby | [brakeman](http://brakemanscanner.org/)[!!](#table-notes), [rails_best_practices](https://github.com/flyerhzm/rails_best_practices)[!!](#table-notes), [reek](https://github.com/troessner/reek), [rubocop](https://github.com/bbatsov/rubocop), [ruby](https://www.ruby-lang.org) |
+| Rust |  cargo[!!](#table-notes) (see `:help ale-integration-rust` for configuration instructions), [rls](https://github.com/rust-lang-nursery/rls), [rustc](https://www.rust-lang.org/) |
 | SASS | [sass-lint](https://www.npmjs.com/package/sass-lint), [stylelint](https://github.com/stylelint/stylelint) |
 | SCSS | [sass-lint](https://www.npmjs.com/package/sass-lint), [scss-lint](https://github.com/brigade/scss-lint), [stylelint](https://github.com/stylelint/stylelint) |
 | Scala | [scalac](http://scala-lang.org), [scalastyle](http://www.scalastyle.org) |
@@ -133,7 +133,7 @@ formatting.
 | Stylus | [stylelint](https://github.com/stylelint/stylelint) |
 | SQL | [sqlint](https://github.com/purcell/sqlint) |
 | Swift | [swiftlint](https://github.com/realm/SwiftLint), [swiftformat](https://github.com/nicklockwood/SwiftFormat) |
-| Tcl | [nagelfar](http://nagelfar.sourceforge.net)[!](#table-notes) |
+| Tcl | [nagelfar](http://nagelfar.sourceforge.net)[!!](#table-notes) |
 | Texinfo | [proselint](http://proselint.com/)|
 | Text^ | [proselint](http://proselint.com/), [vale](https://github.com/ValeLint/vale) |
 | TypeScript | [eslint](http://eslint.org/), [tslint](https://github.com/palantir/tslint), tsserver, typecheck |
diff --git a/doc/ale.txt b/doc/ale.txt
index 481c531..e3a098e 100644
--- a/doc/ale.txt
+++ b/doc/ale.txt
@@ -178,7 +178,7 @@ The following languages and tools are supported.
 Notes:
 
 `^` No linters for text or Vim help filetypes are enabled by default.
-`!` These linters check only files on disk. See |ale-lint-file-linters|
+`!!` These linters check only files on disk. See |ale-lint-file-linters|
 
 * ASM: `gcc`
 * Ansible: `ansible-lint`
@@ -186,29 +186,29 @@ Notes:
 * Awk: `gawk`
 * Bash: `shell` (-n flag), `shellcheck`
 * Bourne Shell: `shell` (-n flag), `shellcheck`
-* C: `cppcheck`, `cpplint`!, `gcc`, `clang`, `clang-format`
-* C++ (filetype cpp): `clang`, `clangcheck`!, `clangtidy`!, `cppcheck`, `cpplint`!, `gcc`, `clang-format`
+* C: `cppcheck`, `cpplint`!!, `gcc`, `clang`, `clang-format`
+* C++ (filetype cpp): `clang`, `clangcheck`!!, `clangtidy`!!, `cppcheck`, `cpplint`!!, `gcc`, `clang-format`
 * C#: `mcs`
 * Chef: `foodcritic`
 * CMake: `cmakelint`
 * CoffeeScript: `coffee`, `coffeelint`
-* Crystal: `crystal`!
+* Crystal: `crystal`!!
 * CSS: `csslint`, `stylelint`
 * Cython (pyrex filetype): `cython`
 * D: `dmd`
 * Dart: `dartanalyzer`
 * Dockerfile: `hadolint`
-* Elixir: `credo`, `dogma`!
+* Elixir: `credo`, `dogma`!!
 * Elm: `elm-make`
 * Erb: `erb`, `erubis`
 * Erlang: `erlc`, `SyntaxErl`
 * Fortran: `gcc`
 * FusionScript: `fusion-lint`
-* Go: `gofmt`, `go vet`, `golint`, `gometalinter`!, `go build`!, `gosimple`, `staticcheck`
+* Go: `gofmt`, `go vet`, `golint`, `gometalinter`!!, `go build`!!, `gosimple`, `staticcheck`
 * GraphQL: `gqlint`
 * Haml: `haml-lint`
 * Handlebars: `ember-template-lint`
-* Haskell: `ghc`, `stack-ghc`, `stack-build`!, `ghc-mod`, `stack-ghc-mod`, `hlint`, `hdevtools`
+* Haskell: `ghc`, `stack-ghc`, `stack-build`!!, `ghc-mod`, `stack-ghc-mod`, `hlint`, `hdevtools`
 * HTML: `HTMLHint`, `proselint`, `tidy`
 * Idris: `idris`
 * Java: `checkstyle`, `javac`
@@ -219,7 +219,7 @@ Notes:
 * Lua: `luacheck`
 * Markdown: `mdl`, `proselint`, `vale`
 * MATLAB: `mlint`
-* Nim: `nim check`!
+* Nim: `nim check`!!
 * nix: `nix-instantiate`
 * nroff: `proselint`
 * Objective-C: `clang`
@@ -230,13 +230,13 @@ Notes:
 * Pod: `proselint`
 * Pug: `pug-lint`
 * Puppet: `puppet`, `puppet-lint`
-* Python: `autopep8`, `flake8`, `isort`, `mypy`, `pycodestyle`, `pylint`!, `yapf`
+* Python: `autopep8`, `flake8`, `isort`, `mypy`, `pycodestyle`, `pylint`!!, `yapf`
 * R: `lintr`
 * ReasonML: `merlin`
 * reStructuredText: `proselint`
 * RPM spec: `rpmlint`
-* Ruby: `brakeman`, `rails_best_practices`!, `reek`, `rubocop`, `ruby`
-* Rust: `cargo`!, `rls`, `rustc` (see |ale-integration-rust|)
+* Ruby: `brakeman`, `rails_best_practices`!!, `reek`, `rubocop`, `ruby`
+* Rust: `cargo`!!, `rls`, `rustc` (see |ale-integration-rust|)
 * SASS: `sass-lint`, `stylelint`
 * SCSS: `sass-lint`, `scss-lint`, `stylelint`
 * Scala: `scalac`, `scalastyle`
@@ -245,7 +245,7 @@ Notes:
 * Stylus: `stylelint`
 * SQL: `sqlint`
 * Swift: `swiftlint`, `swiftformat`
-* Tcl: `nagelfar`!
+* Tcl: `nagelfar`!!
 * Texinfo: `proselint`
 * Text^: `proselint`, `vale`
 * TypeScript: `eslint`, `tslint`, `tsserver`, `typecheck`