Add new article about PlatformIO IDE // Resolve #624

docs/ide/atom.rst

@@ -435,6 +435,7 @@ To force Smart Code Linter to use Arduino files as C++ please
 Articles / Manuals
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+* Apr 16, 2016 - **Sathittham Sangthong** - `[PlatformIO] มาลองเล่น PlatformIO แทน Arduino IDE กัน (Let's play together with PlatformIO IDE [alternative to Arduino IDE], Thai) <http://www.sathittham.com/platformio/platformio-ide/>`_
 * Apr 11, 2016 - **Matjaz Trcek** - `Top 5 Arduino integrated development environments <https://codeandunicorns.com/top-5-arduino-integrated-development-environments-ide/>`_
 * Apr 06, 2016 - **Aleks** - `PlatformIO ausprobiert (Tried PlatformIO, German) <http://5volt-junkie.net/platformio/>`_
 * Mar 30, 2016 - **Brandon Cannaday** - `Getting Started with PlatformIO and ESP8266 NodeMcu <https://www.getstructure.io/blog/getting-started-with-platformio-esp8266-nodemcu>`_