fix formatting

README.md

@@ -407,7 +407,7 @@ It's a great way to learn.
 * [**Python**: _Building a basic HTTP Server from scratch in Python_](http://joaoventura.net/blog/2017/python-webserver/)
 * [**Python**: _Implementing a RESTful Web API with Python & Flask_](http://blog.luisrei.com/articles/flaskrest.html)
 * [**Ruby**: _Building a simple websockets server from scratch in Ruby_](http://blog.honeybadger.io/building-a-simple-websockets-server-from-scratch-in-ruby/)
-* [**JavaScript**: _Building a WebSocket server from scratch, using only the RFC document_]https://medium.com/@ahanshankar/creating-a-websocket-server-using-only-the-rfc-doc-part-1-handshakes-6cbbe16552e5)
+* [**JavaScript**: _Building a WebSocket server from scratch, using only the RFC document_](https://medium.com/@ahanshankar/creating-a-websocket-server-using-only-the-rfc-doc-part-1-handshakes-6cbbe16552e5)
 
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