updated config

Author: joelmarcotte

sqlserver/datadog_checks/sqlserver/data/conf.yaml.example

@@ -108,8 +108,12 @@ instances:
         ## - full_server_name: The resolved full server name of the instance, which is the combination of
         ##   the server name and instance name, or more specifically, the exact value returned by `@@SERVERNAME`.
         ## In addition, you can use any key from the `tags` section of the configuration.
-        #
+		##
+		## Some examples:
+		#
         # template: $full_server_name
+        # template: $env-$resolved_hostname:$port
+		# template: $resolved_hostname/$your-custom-tag
 
     ## @param database_autodiscovery - boolean - optional - default: false
     ## Auto-discover and monitor databases. Supported for the metrics check.