OSDOCS-8693: add Getting support assembly MicroShift

Author: ShaunaDiaz

_topic_maps/_topic_map_ms.yml

@@ -79,6 +79,8 @@ Topics:
   File: microshift-etcd
 - Name: The sos report tool
   File: microshift-sos-report
+- Name: Getting support
+  File: microshift-getting-support
 ---
 Name: API reference
 Dir: microshift_rest_api