Update CONTRIBUTING.md

Author: mfranzke

CONTRIBUTING.md

@@ -9,7 +9,3 @@ We are committed to fostering a welcoming, respectful, and harassment-free envir
 Please make sure that husky is installed correctly to validate your changes.
 
 Moreover, you need to duplicate `.env.template` as `.env` and type your own email address. This ensures that you have the correct email set for this project.
-
-### Conventions
-
-Please be aware that we have some [code and git commit (message and branch naming) conventions](https://github.com/db-ui/sketch-color-import/blob/main/docs/conventions.adoc), that we ensure with some linting tools.