Update contribution info

README.md

@@ -9,4 +9,4 @@ Random exheres.
 You have these possibilities:
 
 1. git patch via email to: hasufell `ä` hasufell.de
-2. ask for an account on https://gogs.hasufell.de and fork+PR
+2. create an account [here](https://gogs.hasufell.de/user/sign_up) and fork+PR