Merge pull request #16 from tedder/patch-1

add missing versions to version history

Author: jimblom

README.md

@@ -29,6 +29,9 @@ Products that use this Library
 
 Version History
 ---------------
+* master - add platform.io support
+* [v 1.2.0](https://github.com/sparkfun/SparkFun_Micro_OLED_Arduino_Library/releases/tag/V_1.2.0) - add SAMD21 support, fix PROGMEM and `_BV` errors
+* v 1.1.3 (not released)
 * [v 1.1.2](https://github.com/sparkfun/SparkFun_Micro_OLED_Arduino_Library/tree/V_1.1.2) - Added compatibility for ESP8266
 * [v 1.1.1](https://github.com/sparkfun/SparkFun_Micro_OLED_Arduino_Library/tree/V_1.1.1) - Changed to remove register level pin access, for cross-platform compatibility
 * [v 1.1.0](https://github.com/sparkfun/SparkFun_Micro_OLED_Arduino_Library/tree/V_1.1.0) - Matching 1.6 standard