The External Content extension allows for embedding external content, such as markdown files, in your wiki pages. The standard configuration allows embedding links from GitHub and Bitbucket.
Embedding external content
Copy and paste
In visual editing mode, you can simply copy the url to your clipboard and paste it into the wiki page in visual editing mode. The visual editor will automatically convert the url to an embedded view of the actual external content.

If you want to post a link to the external page instead, you need to paste the url into the "Insert link" menu. After adding the link you can add a label, since external links that are created with the "insert link" menu do not automatically show the full url or a link label.

Content droplet
To embed a GitHub or Bitbucket link, you can also select the related Content droplet:
- External content (for GitHub)
- Bitbucket file