added js sdk to README.md

Author: scshiv29-dev

README.md

@@ -149,3 +149,6 @@ client.datasources.drop('my_datasource')
 ```
 >Note: The SDK currently does not support automatically removing a data source if it is no longer connected to any mind.
 
+
+### Other SDKs
+#### [Javascript](https://github.com/scshiv29-dev/mindsbd_sdk_js)