Update README badges with links

The commit changes the README file by updating the pipeline and coverage badges. It adds direct links to the main and dev commit history on these badges, improving navigation and making it easier to access the corresponding information.

README.md

-![main-pipeline](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/badges/main/pipeline.svg?job=pytest&key_text=Main+Pipeline)
-![main-coverage](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/badges/main/coverage.svg?job=pytest&key_text=Main+Coverage)
-![dev-pipeline](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/badges/dev/pipeline.svg?job=pytest&key_text=Dev+Pipeline)
-![dev-coverage](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/badges/dev/coverage.svg?job=pytest&key_text=Dev+Coverage)
+[![coverage report](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/badges/main/pipeline.svg?job=pytest&key_text=Main+Pipeline&key_width=130)](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/-/commits/main)
+[![coverage report](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/badges/main/coverage.svg?job=pytest&key_text=Main+Coverage&key_width=130)](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/-/commits/main)
+[![coverage report](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/badges/dev/pipeline.svg?job=pytest&key_text=Dev+Pipeline&key_width=130)](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/-/commits/dev)
+[![coverage report](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/badges/dev/coverage.svg?job=pytest&key_text=Dev+Coverage&key_width=130)](https://gitlab.ub.uni-bielefeld.de/scs/cocosy/overcooked-simulator/-/commits/dev)
 
 # Cooperative Cuisine Environment