Move away from github

CONTRIBUTING.md

@@ -9,17 +9,17 @@
 
 This script makes use of two files:
 
-1. [.download-urls](https://raw.githubusercontent.com/haskell/ghcup/master/.download-urls),
+1. [.download-urls](https://gitlab.haskell.org/haskell/ghcup/raw/master/.download-urls),
    which is meta information on what binary tarball to download for the given version, architecture and distribution.
    If you know your distribution XY works with a tarball, add a `<distroname>=<distrover>` key to that line. `<distroname>`
    will be the fallback and after that `unknown`. Lines are unique per tarball url.
-2. [.available-versions](https://raw.githubusercontent.com/haskell/ghcup/master/.available-versions),
+2. [.available-versions](https://gitlab.haskell.org/haskell/ghcup/raw/master/.available-versions),
    which just lists available upstream versions and tags.
 
 ## TODO
 
-- [ ] FreeBSD support ([#4](https://github.com/haskell/ghcup/issues/4))
-- [x] Make fetching tarballs more robust ([#5](https://github.com/haskell/ghcup/issues/5))
+- [ ] FreeBSD support ([#4](https://gitlab.haskell.org/haskell/ghcup/issues/4))
+- [x] Make fetching tarballs more robust ([#5](https://gitlab.haskell.org/haskell/ghcup/issues/5))
 - [x] More code documentation
-- [x] Allow to compile from source ([#2](https://github.com/haskell/ghcup/issues/2))
-- [x] Allow to install cabal-install as well ([#3](https://github.com/haskell/ghcup/issues/3))
+- [x] Allow to compile from source ([#2](https://gitlab.haskell.org/haskell/ghcup/issues/2))
+- [x] Allow to install cabal-install as well ([#3](https://gitlab.haskell.org/haskell/ghcup/issues/3))