TIQR-000: Fix demo site

[dzolnai]

Pull Request Checklist

• [x] I have added proper commit messages
• [ ] I have updated tests and documentation
• [x] I ran the tests
• [ ] I provided the ticket number as PR title
• [x] I have assigned the required reviewers

Short Description of Change

The demo site uses tiqr.org as the URL, so was not allowed by host enforcement.