Version control (sometimes called source control) keeps track of changes to files over time. Multiple users can edit the same projects. Some platforms that support version control are GitHub, GitLab, BitBucket, and Google Drive.
Create an account on GitHub by going to github.com and signing up. Once complete, click the profile circle on the top right. Most navigation items can be found through the pull down menu. Download a Git CLI, preferably (Git for Windows)[https://gitforwindows.org/], however, GitHub provides a CLI that is recently out of beta GitHub CLI.
To use GitHub with PSoc code requires a very specific set up, this is mostly due to how PSoC creates and manages files.