Update developing.md

app/developing.md

@@ -23,7 +23,7 @@ If you are able to create debug logs and create Issues feel free to subscribe th
 
  ⚠️ Please note ⚠️ We've got a lot of trouble pairing with the card10. If your want to connect to the card10:
  
-* checkout the [ios-workarounds branch](https://git.card10.badge.events.ccc.de/card10/firmware/tree/ios-workarounds) of the firmware repository
+* checkout the [ios-workarounds branch](https://git.card10.badge.events.ccc.de/card10/firmware/commits/plaetzchen/ios-workaround) of the firmware repository
 * rebase the branch on the current firmware master
 * build a firmware image
 * flash that image on the card10