How do I show the contents of a link instead of just the link?

I want a post in a thread to be the contents of a wiki page.

If I post a link, it just shows the link.

I believe that the forum software (Discourse), only supports embedding of certain limited content types. You can learn more at

Embedding of that sort will also only work if the URL starts on a fresh new line in the editor. No spaces, bullets, etc., and not in the middle of a paragraph.

The proper form, anyhow, is to paste the URL, and use the “Quote” feature (i.e., prefix each paragraph with “>”) to include a reasonable small portion of the article for context.

I posted a few that work, but the one I’m having trouble with is a link to the unofficial wiki.
It uses php so that may an issue.

the link is