New build for public beta and update README

README.md

 Companion App iOS
+===
+
+A card10 companion app for iOS, trying to build something in time for camp
+
+
+TestFlight Public Beta
 ---
 
-A card10 companion app for iOS, trying to build something in time for camp
\ No newline at end of file
+There is a public beta available in TestFlight. You can subscribe to it by installing the TestFlight app from the AppStore on your iPhone  and opening this link on your device: https://testflight.apple.com/join/oqZhY70M
+
+**WARNING**
+
+This version is not yet aible to connect to the official firmware. If you want to help debug the security issues please have a look at the issues. Find details [here](https://card10.badge.events.ccc.de/app/)
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card10badge/Info.plist

@@ -17,7 +17,7 @@
 	<key>CFBundleShortVersionString</key>
 	<string>1.0</string>
 	<key>CFBundleVersion</key>
-	<string>2</string>
+	<string>3</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>NSBluetoothPeripheralUsageDescription</key>