Update README

Author: DeepAQ

README.md

@@ -1,8 +1,26 @@
-# AQMissionHelper
-Route to the next Onyx
-- [Website](http://imaq.cn/mh)
-
 ![AQMissionHelper](http://imaq.cn/mh/icon.png)
 
+# AQMissionHelper - Route to the next Onyx
+AQMissionHelper is a tool that helps Ingress players (especially Chinese players) complete missions in a quick and convenience way.
+Available for Android(App) and other platforms(Web).
+
+## Features
+- Show missions in [IngressMM](https://ingressmm.com)
+- Display user location
+- Display device orientation (Android only)
+- Optimized map for Chinese users
+- Navigation to mission waypoints
+
+## Changelog (latest)
+#### V1.2.1-161012:
+- fixed a bug in the mission navigation bar
+- press back button twice to exit on Android
+- update checking on Android
+
+
+## Support
+- [Website](http://imaq.cn/mh)
+- [Telegram channel for announcements](https://telegram.me/AQMissionHelper)
+
 ## License
 AGPLv3 License