Adding a hyperlink to the Competitor Description allows you to provide a Judge with more information about a Competitor beyond a bit of text. See this article for how to turn links into buttons.
Here, you can see a clickable link has been added to Competitor G2, Princess Leia. There is both text and a link.
You can also include a link and a video:
Learn more about video embedding here.
To include a hyperlink, simply follow the normal instructions for Adding New Competitors, but include the hyperlink in the Competitor Description. To add both text and a hyperlink in the Description, enter the text first, then a space, then the link (or vice versa). To add video and text and a hyperlink, enter the video first, then text, then the link.