ci: add conventional-commits to pre-commit

.pre-commit-config.yaml

@@ -15,3 +15,9 @@ repos:
         args: [--fix]
       # Run the formatter.
       - id: ruff-format
+  - repo: https://github.com/compilerla/conventional-pre-commit
+    rev: v3.1.0
+    hooks:
+      - id: conventional-pre-commit
+        stages: [commit-msg]
+        args: []

README.md

@@ -168,6 +168,13 @@ pip install pycs
 - To test code, use [pytest](https://pytest.org): `pytest .`
 - This repository follows semantic-release, which means all commit messages have to follow a [style](https://python-semantic-release.readthedocs.io/en/latest/commit-parsing.html).
   You can use tools like [commitizen](https://github.com/commitizen-tools/commitizen) to write your commits.
+- You can also use [pre-commit](https://pre-commit.com/) to help verify that all changes are valid.
+  Multiple hooks are used, so use the following commands to install:
+
+  ```bash
+  pre-commit install
+  pre-commit install --hook-type commit-msg
+  ```
 
 ## Acknowledgements