Minor update to Share AMI Command

New Customer Setup Notes - GovCloud.md

@@ -416,7 +416,7 @@ You forgot to share the AMI with the new account. See the instructions above and
 
 ```
 cd ~/xdr-terraform-live/bin/
-AWS_PROFILE=mdr-common-services-gov update-ami-accounts <aws-account-id>
+AWS_PROFILE=mdr-common-services-gov update-ami-accounts 'MSOC*' <aws-account-id>
 ```