Installation.md

+Download the [iso file](https://drive.google.com/open?id=1dySeAkIo5zjcO3GxZ4xMI-VjAyBadmHo)
+
+Flash it on a usb, recommand to use [etcher](https://www.balena.io/etcher/) 
+
+Run the installer.
+
+Reboot.
+
+[Next](https://gitlab.com/guna-hk/guna-nms/wikis/Add-cron-job)
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