Create arduino_installation.md

Author: dani007200964

Doc/markdown_pages/arduino_installation.md

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+@page arduiono_installation Arduino installation
+
+__Install from Arduino Library Manager__
+
+You can use [Arduino Library Manager](https://www.arduinolibraries.info/libraries/commander-api).
+
+__Install from PlatformIO Registry__
+
+You can use [PlatformIO's own registry](https://registry.platformio.org/libraries/dani007200964/Commander-API).