Removed limitation

#1951 changes how arguments are passed from the API server to the Python service. This now allows for multi-line comment support.

backend/src/apiserver/visualization/README.md

@@ -169,8 +169,4 @@ within your cluster.
 		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(maxCallRecvMsgSize)),
 		grpc.WithInsecure(),
 	}
-    ```
-* Visualizations cannot include multiline comments.
-    * Due to how Python visualization code is escaped within network requests,
-    multiline comments such as `""" comment """` and `''' comment '''` are not
-    supported within custom visualizations.
+    ```