Add new Git tutorial to tutorial page

doc/tutorials/index.md

@@ -31,6 +31,7 @@ the most out of GitLab.
 
 | Topic | Description | Good for beginners |
 |-------|-------------|--------------------|
+| [Make your first Git commit](make_your_first_git_commit.md) | Create a project, edit a file, and commit changes to a Git repository from the command line. | **{star}** |
 | [Start using Git on the command line](../gitlab-basics/start-using-git.md) | Learn how to set up Git, clone repositories, and work with branches. | **{star}** |
 | [Git cheat sheet](https://about.gitlab.com/images/press/git-cheat-sheet.pdf) | Download a PDF of common Git commands. | |