diff --git a/doc/gitlab-basics/README.md b/doc/gitlab-basics/README.md
index d6272cd591267e4ef462494beb82eb21665f6d9e..538894f58480dc2a706e3585e91eaf75670d9758 100644
--- a/doc/gitlab-basics/README.md
+++ b/doc/gitlab-basics/README.md
@@ -2,7 +2,7 @@
 
 Step-by-step guides on the basics of working with Git and GitLab.
 
-* [Start using Git on the commandline](start-using-git.md)
+* [Start using Git on the command line](start-using-git.md)
 
 * [Create and add your SSH Keys](create-your-ssh-keys.md)
 
@@ -17,3 +17,5 @@ Step-by-step guides on the basics of working with Git and GitLab.
 * [Create a branch](create-branch.md)
 
 * [Fork a project](fork-project.md)
+
+* [Add a file](add-file.md)
diff --git a/doc/gitlab-basics/add-file.md b/doc/gitlab-basics/add-file.md
new file mode 100644
index 0000000000000000000000000000000000000000..ac0d98085a4a9eb1cee2d15d99c234097516369e
--- /dev/null
+++ b/doc/gitlab-basics/add-file.md
@@ -0,0 +1,31 @@
+# How to add a file
+
+You can create a file in your [shell](command-line-commands.md) or in GitLab.
+
+To create a file in GitLab, sign in to [GitLab.com](https://gitlab.com).
+
+Select a project on the right side of your screen:
+
+![Select a project](basicsimages/select_project.png)
+
+[Create a branch](create-branch.md).
+
+Go to the directory where you'd like to add the file and click on the "+" sign next to the name of the project and directory:
+
+![Create a file](basicsimages/create_file.png)
+
+Add a name to your file, use .md or .html at the end, depending on which markup language you'd like to use (you can't add spaces, so you can use hyphens or underscores):
+
+![File name](basicsimages/file_name.png)
+
+Add all the information that you'd like to include in your file:
+
+![Add information](basicsimages/white_space.png)
+
+Add a commit message based on what you just added and then click on "commit changes":
+
+![Commit changes](basicsimages/commit_changes.png)
+
+### Note
+Besides its regular files, every directory needs a README.md or README.html file which works like an index, telling
+what the directory is about. It's the first document you'll find when you open a directory.