add node experimental warning

UziTech · UziTech · commit 801a7b43885b · 2019-04-26T12:30:50.000-05:00
diff --git a/docs/USING_ADVANCED.md b/docs/USING_ADVANCED.md
@@ -85,6 +85,9 @@ Marked can be run in a [worker thread](https://nodejs.org/api/worker_threads.htm
 
 ### Node Worker Thread
 
+> 🚨 Node Worker Threads are [experimental](https://nodejs.org/api/worker_threads.html#worker_threads_worker_threads) 🚨
+> This implementation may change.
+
 ```js
 // markedWorker.js
 
