Add safe tag to "ask a brief question" description
Add safe tag to "ask a brief question" description

This was rendering with the verbatim html tags ever since the
`markdown` filter was removed from the toolkit testbox template.

Works now though.

alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend,alphagov/digitalmarketplace-supplier-frontend