README.md

   1 ## OpenTX 2.2 Branch
   2
   3 [![Travis build Status](https://travis-ci.org/opentx/opentx.svg?branch=2.2)](https://travis-ci.org/opentx/opentx)
   4 [![Quality Gate](https://sonarcloud.io/api/badges/gate?key=OpenTX:2.2)](https://sonarcloud.io/dashboard?id=OpenTX:2.2)
   5 [![Join the chat at https://opentx.rocket.chat](https://camo.githubusercontent.com/3d659054abd6ce21c0e47cf3b83a51bda69ca282/68747470733a2f2f64656d6f2e726f636b65742e636861742f696d616765732f6a6f696e2d636861742e737667)](https://opentx.rocket.chat)
   6 [![Donate using Paypal](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DJ9MASSKVW8WN)
   7
   8 The ongoing development on 2.2.x is done in this branch.
   9
  10 Refer to the [OpenTX wiki](https://github.com/opentx/opentx/wiki) for information about setting up the tool chains for building OpenTX and OpenTX Companion as well as other development related issues.
  11
  12 Useful links:
  13  * OpenTX Main Site http://www.open-tx.org/
  14  * OpenTx University http://open-txu.org/
  15  * OpenTX User Manual https://www.gitbook.com/book/opentx/opentx-taranis-manual/details
  16  * OpenTX Lua Reference Guide https://www.gitbook.com/book/opentx/opentx-lua-reference-guide/details