Document Camunda Hub Catalog

[marstamm]

The rough outline should include

• Add a new Section in the Camunda Hub Docs for Catalog
• Explain the supported asset types (Element templates)
• Add a getting started guide
  • Explain external source of truth, e.g. Git
  • Structure of external repo + metadata needed
  • CI to gather and push to Hub
  • Authentication and Endpointsfor SaaS and SM
• Add a usage guide for Assets in Hub
  • Discovery in Catalog
  • Discovery in Canvas
  • View for CoE or Administrators

[alexronquillo]

FYI: I've already prepped a catalog section in the new Hub docs.

• https://docs.camunda.io/docs/next/components/hub/organization/manage-catalog/
• https://github.com/camunda/camunda-docs/tree/main/docs/components/hub/organization/manage-catalog