Merge branch 'patch-29' into 'master'

Update command-line-commands.md to include an sample taskflow

See merge request gitlab-org/gitlab-ce!21756

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

@@ -125,3 +125,6 @@ pwd
 ```
 clear
 ```
+### Sample Git taskflow
+
+If you are completely new to Git, looking through some [sample taskflows](https://rogerdudler.github.io/git-guide/) will help you understand best practices for using these commands as you work.