Description of problem: In the https://developers.redhat.com/learning/learn:openshift:install-and-configure-red-hat-developer-hub-and-explore-templating-basics/resource/resources:install-red-hat-developer-hub-developer-sandbox-red-hat-openshift at Step no 9 it is incorrectly mentioned to put a forward slash('/').

Because of the slash, helm release fails as the route does not get created. ** 

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. Go to 
2. See step no 9 - 

   9. Navigate to Root Schema -> global. Then under Enable service authentication within Backstage instance, enter the required shorthand in the format apps.{your_sandbox_url}.openshiftapps.com/ (see the URL bar at the top of Figure 8 to see where to find this information in your Developer Sandbox URL).

Actual results: Here are the logs. - 

Release "redhat-developer-hub" failed: 1 error occurred: * Route.route.openshift.io "redhat-developer-hub" is invalid: [spec.host: Invalid value: "redhat-developer-hub-rhn-support-sthareja-dev.apps.sandbox-m3.1530.p1.openshiftapps.com/": host must conform to DNS 952 subdomain conventions, spec.host: Invalid value: "redhat-developer-hub-rhn-support-sthareja-dev.apps.sandbox-m3.1530.p1.openshiftapps.com/": a lowercase RFC 1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character (e.g. 'my-name', or '123-abc', regex used for validation is '[a-z0-9]([-a-z0-9][a-z0-9])?')]*

Expected results: Helm should get deployed successfully

Reproducibility (Always/Intermittent/Only Once): Always

Build Details:

Additional info (Such as Logs, Screenshots, etc):