Milestone refinement cloud portal

Refinement of cloud portal MS.

• link to Roadmap preview

1. Moved "production version" Milestone to Nov 21
   • corresponds to webapp milestone %3
2. Added proposal for "user specific service view", Sept 21
   • corresponds to webapp milestone %1

_roadmap/cloud/2021-09-01-User-specific-service-view.md

+---
+date: 2021-09-01
+title: Tasks in Sept 2021
+service: cloud
+---
+
+## User-specific Service View in Cloud Portal
+In Cloud Portal (beta), logged-in users shall be able to have a specific view on the services they are allowed to use, 
+as well as service usage conditions.