Add CONTRIBUTING.md with fork and branch workflow#13

DavidLanders95 with Copilot wants to merge 2 commits into

broken_microscope_modelTemGym/TemGymCore:broken_microscope_modelfrom

copilot/fork-repo-and-create-branchTemGym/TemGymCore:copilot/fork-repo-and-create-branchCopy head branch name to clipboard