docs: add development section with conventions to README.md

Author: tom-weelborg

README.md

@@ -46,4 +46,12 @@ Tools like [Lombok](https://projectlombok.org/) are used to reduce boilerplate c
     docker compose up -d
     ```
 
-To use this project, it is advised to use the corresponding [Frontend](https://github.com/DevLink-dev/devlink-frontend-svelte). 
+To use this project, it is advised to use the corresponding [Frontend](https://github.com/DevLink-dev/devlink-frontend-svelte). 
+
+## Development
+
+This project is developed following the conventions listed below.
+
+### Conventions
+
+The following are lists of conventions that either *should* be followed or *must* be followed when contributing to this project.