Fix link (#736)

Co-authored-by: Lina Wolf <48202465+linawolf@users.noreply.github.com>

Author: github-actions[bot]

Documentation/ProjectTemplates/GitLabTemplate/Index.rst

@@ -58,7 +58,7 @@ Then clone the repository:
     git clone git@gitlab.com:linawolf/getting-started-with-the-gitlab-template.git
 
 ..  note::
-    You need an `SSH key (GitLab docu) <https://docs.gitlab.com/user/ssh/>` to
+    You need an `SSH key (GitLab docu) <https://docs.gitlab.com/user/ssh/>`_ to
     do this.
 
 ..  _gitlab-template-setup: