chore: fix maintenance docs (#39)

MAINTAINING.md

@@ -1,17 +1,4 @@
 # Maintainer's Handbook
 ## Make a new release
 
-
-1. Checkout main branch, ensure you have all tags
-2. Figure out the next version
-3. Update code ([setup.py](setup.py), [CHANGELOG.md](CHANGELOG.md))
-4. Pull Request with the version bump.
-5. Create tag and release on the merge commit with the changelog
-
-```sh
-# Ensure you're on the current `main` branch and have all release tags
-git checkout main
-git pull origin --tags
-```
-
-The new release will be built by GitHub Actions and automatically uploaded to PyPi.
+Thanks to python-semantic-release being fully enabled, all you have to do is go to "Actions" and manually trigger the "Release" workflow.