Merge branch 'contribute/no-rm-rf-gitlab-basics' into 'master'

Don't use "-f" with "rm" in Gitlab-Basics Docs

Closes #20071

See merge request gitlab-org/gitlab-ce!18027

changelogs/no-rm-rf-gitlab-basics.yml

+---
+  title: Do not use '-f' with 'rm' in gitlab-basics docs
+  merge_request: 18027
+  author: Elias Werberich
+  type: changed

doc/gitlab-basics/command-line-commands.md

@@ -71,7 +71,7 @@ rm NAME-OF-FILE
 ### Remove a directory and all of its contents
 
 ```
-rm -rf NAME-OF-DIRECTORY
+rm -r NAME-OF-DIRECTORY
 ```
 
 ### View history in the command line