Merge pull request #1128 from gnulabis/master

add UTFT-ESP8266 to the list of compatible third-party libraries

Author: igrr

doc/libraries.md

@@ -151,3 +151,4 @@ Libraries that don't rely on low-level access to AVR registers should work well.
 - [RTC](https://github.com/Makuna/Rtc) - Arduino Library for Ds1307 & Ds3231 compatible with ESP8266.
 - [Souliss, Smart Home](https://github.com/souliss/souliss) - Framework for Smart Home based on Arduino, Android and openHAB.
 - [ST7735](https://github.com/nzmichaelh/Adafruit-ST7735-Library) - Adafruit's ST7735 library modified to be compatible with ESP8266.  Just make sure to modify the pins in the examples as they are still AVR specific.
+- [UTFT-ESP8266](https://github.com/gnulabis/UTFT-ESP8266) - UTFT display library with support for ESP8266. Only serial interface (SPI) displays are supported for now (no 8-bit parallel mode, etc). Also includes support for the hardware SPI controller of the ESP8266.