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README.md

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-# Move-OSD-Windows-GNOME-Extension
+# Move OSD Windows (GNOME Extension)
 A GNOME Shell extension allowing the user to set the position of the OSD windows for sound or luminosity.
+
+## Installation
+The better option is to install it from https://extensions.gnome.org/
+
+> How to manually install the extension ?
+
+Download files and put them in an `move-osd-windows@maestroschan.fr` folder to `~/.local/share/gnome-shell/extensions/`
+
+You may need to restart the gnome shell environnment ("logout and login again", or alt+f2 + r + enter).
+
+## Screenshot
+
+![Screenshot](http://i.imgur.com/uJPgGkD.png)