Add entry for stahlstadt.js to registry

Author: pangratz

registry.md

@@ -65,6 +65,10 @@ An awesome new trend has taken root in the JS community. After announcing a "com
 ### [Graz.js](https://plus.google.com/u/0/b/116023769200964243200/116023769200964243200/posts) (#008232 and #FFFFFF)
 <img src='https://raw.github.com/grazjs/logo.js/master/grazjs/grazjs.png' width='200'/>
 
+---
+### stahlstadt.js [http://meetup.com/stahlstadt-js](http://www.meetup.com/stahlstadt-js)
+<img src='https://raw.github.com/stahlstadtjs/logo.js/master/stahlstadtjs/stahlstadtjs.png' width='200'/>
+
 ---
 ### PerfShim (#f3df49 and #2e2e2c)
 <img src='https://github.com/SamuelEnglard/perfshim/blob/master/Logo/PerfShim.png?raw=true' width='200'/>