URL in tor-qa email template in Release Prep issue templates is missing a /torbrowser/

The url in the tor-qa email template in .gitlab/issue_templates/Release Prep - Tor Browser Stable.md and .gitlab/issue_templates/Release Prep - Tor Browser Alpha.md is missing a /torbrowser/.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information