Within Teamwork Desk, you can embed links in your individual articles, either to other help docs or external links.
To do this, click the link icon from the editor bar when editing an article.
When the modal opens, you will see an option to search through your existing help docs. When you select one, the associated URL will be populated in the Link field.
Alternatively, you can paste your own URL into the Link field.
You can add text into the Text field to be displayed in the content of the article as the link rather than showing the full URL.
For more information, see: Help Docs Media Options