doc: extract Commit Convention section (#518)

docs/default.nix

@@ -45,7 +45,6 @@ in pkgs.stdenvNoCC.mkDerivation {
     cp ${../README.md} src/README.md
     cp ${../gnome.png} src/gnome.png
     cp ${../kde.png} src/kde.png
-    cp ${../CONTRIBUTING.md} src/contributing.md
 
     # mdBook doesn't support this Markdown extension yet
     substituteInPlace **/*.md \

docs/src/SUMMARY.md

@@ -13,7 +13,7 @@
 
 # Contributing
 
-- [Contributing](contributing.md)
+- [Commit Convention](commit_convention.md)
 - [Adding modules](modules.md)
 - [Testbeds](testbeds.md)
 - [Style guide](styling.md)

docs/src/commit_convention.md

@@ -1,6 +1,4 @@
-# Contributing to Stylix
-
-## Commit messages
+# Commit Convention
 
 To keep things consistent, commit messages should follow a format
 [similar to Nixpkgs](https://github.com/NixOS/nixpkgs/blob/master/CONTRIBUTING.md#commit-conventions):
@@ -31,7 +29,7 @@ punctuation.
 Most commits to `master` will also include a pull request number in brackets
 after the summary. GitHub adds this automatically when creating a squash merge.
 
-### Old commits
+## Old commits
 
 Commits before 2024 did not follow any particular format.
 Some have emojis from [GitMoji](https://gitmoji.dev).