Please add the Rich Content Editor (RCE) to the Description text box field when adding content to Canvas Commons.
When sharing content to Canvas Commons, a Description text box field is available to add information describing your content. However, the Rich Content Editor (RCE) is not available to create hyperlinks, embed images/videos, etc. Everything will be saved as plain text, and links included in the Description field do not become "active" upon saving your changes.
Further, if you have multiple paragraphs (similar to what's shown above), those are all lost as well when looking at the same text in the Details tab (after the content has been saved to Commons).