doc: update README with conventional commits info

README.md

@@ -1,12 +1,24 @@
 ## Development
 
+### Quickstart
+
 - `npm install`, the postinstall runs
   - `npm run rebuild`
     - might need to install some build tools depending on your platform
   - `npm run typeorm:migrate` for installing the database
 - `npm run tsc` for backend
 - `npm run webpack` for frontend
-- `npm dev`
+- `npm run dev`
+
+### Git Commits
+
+This project uses [Conventional Commits](https://www.conventionalcommits.or) with the following types:
+- `feat`: features, if any part of your commit implements a new function, use this
+- `fix`: bugfixes
+- `doc`: documentation
+- `refactor`: code refactoring
+
+Always try to split up your changes into coherent commits, a single commit should do a single thing.
 
 ### Database Migrations