Update README.md

README.md

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 # 2D-Top-Down
 ### Unity Version: 2021.2.10f1
+
+## Start with Git
+[GitLab Documentation](https://docs.gitlab.com/ee/gitlab-basics/start-using-git.html)
+### Set Git config
+`git config --global user.name "your_username"`
+
+`git config --global user.email "your_email_address@tealfire.de"`
+
+`git config --global --list`
+
+### Clone Project
+Get in the folder you want your project to be in.
+
+Open Console in this folder.
+
+`git clone git@tealfire.de:gamedev/2d-top-down.git`
+
+`cd 2d-top-down`
+
+### Add Remote
+`git remote add origin git@tealfire.de:gamedev/2d-top-down.git`
+
+### Commit and Push
+Add all files to commit and create Commit
+`git commit -a -m "COMMENT TO DESCRIBE THE INTENTION OF THE COMMIT"`
+
+`git push origin <branch>`
+
+### Pull
+`git pull origin <branch>`
+
+
+### Branch
+To use a different branch just add another branch name in `git push origin <branch>`
+
+if the branch exists it pushes into it and if not it creates a new branch
+
+
+### General
+See what you changed:
+`git status`