Adding more then one link in response to webhook

Our external software provides the check result for Pull Request and we can submit the target_url element in response. There is also the description element where we are trying to set an additional link for a user, but the HTML string or URI is not working. Is there any possibilities to prepare the response to include one more link?

Welcome to the GitHub community, @pczabans! We’re happy you’re here. You are more likely to get a useful response if you are posting your question(s) in the applicable category. I’ve gone ahead and moved it for you. Good luck!