update Cloud Portal documentation

This is a first version of the updated cloud portal documentation to replace the old technical platform docs. I will continue to update this in subsequent MRs.

mkdocs.yml

@@ -34,6 +34,8 @@ plugins:
             'service-integration/pilot-services/prototype-openstack.md': 'cloud-services/pilot-services/prototype-openstack.md'
             'cloud-services/pilot-services/pilot-services.md': 'cloud-services/list-of-services.md'
             'service-integration/local-agent/README.md': 'service-integration/hca/README.md'
+            'technical-platform/TP_Whitepaper/README.md': 'cloud-portal/CP_Architecture.md'
+            'technical-platform/TP_DeveloperManual/README.md': 'cloud-portal/CP_DeveloperManual.md'
 
 markdown_extensions:
     - smarty