Major benefits:
- Git provides version control to your Unity project. You can always go back to previous committed version of your codes.
- Git help storing your project in Remote repository. If your machine dies or has data corrupted, your works is not lost.
- Git help Teams to work together effectively by allowing branching and merging codes.
Steps:
- Download and Install git from https://git-scm.com/:

2. Create GitHub Repository:
Signin to your GitHub account and Create a new repository:

3. Link your local project to the remote GitHub Repository.
Find your repo URL from GitHub

Navigate to your Unity Project folder (git bash or command-line windows) and run the following commands:
Initialized Git repository:
git init
Link local project to the remote repo (using the repo URL):
git remote add origin https://github.com/SIXTOTO/Version-Control-Example.git
4. Start using Git

To use Git effectively, you only need to know less than a dozen commands.
Git website also has a quick tutorial and documentation that are very useful:
Enjoy using Git with Unity !