Added the known issues

Author: psaini

docs/dbcs/provisioning/known_issues.md

@@ -3,3 +3,10 @@
 Below are the known issues using the Oracle DB Operator DBCS Controller:
 
 1. There is a known issue related to the DB Version 19c, 12c and 11g when used with the Oracle DB Operator DBCS Controller. DB Version 21c and 18c work with the controller.
+2. In order to scale up storage of an existing DBCS system, the steps will be:
+    * Bind the existing DBCS System to DBCS Controller.
+    * Apply the change to scale up its storage.
+   This causes issue. The actual real step sequence that work is
+    * Bind 
+    * Apply Shape change 
+    * Apply scale storage change