Add obs-web project

Closes obs-websocket-community-projects#216

Author: duncte123

README.md

@@ -233,6 +233,7 @@ obs.on('SwitchScenes');
 _To add your project to this list, submit a Pull Request._
 - [GamesDoneQuick/agdq17-layouts](https://github.com/GamesDoneQuick/agdq17-layouts)
 - [nodecg/nodecg-obs](https://github.com/nodecg/nodecg-obs)
+- [Niek/obs-web](https://github.com/Niek/obs-web)
 
 ## [Contributing Guidelines][link-contributing]