Merge pull request #4358 from weiznich/fix/remove_gitter

Remove gitter from the readme

Author: weiznich

README.md

@@ -36,10 +36,8 @@ Guides on more specific features are coming soon.
 ## Getting help
 
 If you run into problems, Diesel has a very active Gitter room.
-You can come ask for help at
-[gitter.im/diesel-rs/diesel](https://gitter.im/diesel-rs/diesel).
-For help with longer questions and discussion about the future of Diesel,
-open a discussion on [GitHub Discussions](https://github.com/diesel-rs/diesel/discussions).
+You can come ask for help at in our [GitHub Discussions](https://github.com/diesel-rs/diesel/discussions) forum. 
+This is also the right place to propose new features or show your applications.
 
 ## Usage