Update README

Author: askmrsinh

README.md

@@ -1,4 +1,29 @@
 # TouchpadIndicator
-Touchpad management GNOME Shell Extension.  :link:
+Touchpad management GNOME Shell Extension.
+
+Automatically disable other pointing devices when an external mouse is plugged in.  
+Optionally, switch the touchpad, trackpoint, fingertouch, touchscreen or a pen device on and off easily from the top panel.
 
 ![Touchpad Indicator Screenshots](media/screenshots.gif)
+
+
+## Installation
+
+**From GNOME Shell Extension Website**
+ 1. Visit [https://extensions.gnome.org/extension/131/touchpad-indicator/](https://extensions.gnome.org/extension/131/touchpad-indicator/) in Firefox browser.
+ 2. Click on the switch at right side to toggle it from OFF to ON.
+ 3. Accept any installation prompts.
+
+**From GitHub**
+ 1. Open a terminal and run:
+    ```bash
+    rm -rf ~/.local/share/gnome-shell/extensions/touchpad-indicator@orangeshirt;
+    git clone --depth=1 "https://github.com/user501254/TouchpadIndicator.git" ~/.local/share/gnome-shell/extensions/touchpad-indicator@orangeshirt;
+    ```
+ 2. Restart GNOME Shell by pressing `Alt+F2`, `r`, `Enter` or by Logging out and Logging in.
+ 3. Enable the extension in *[gnome-tweak-tool](https://wiki.gnome.org/action/show/Apps/Tweaks)*.
+
+
+## License
+
+Touchpad Indicator GNOME Shell Extension is distributed under the terms of the **[GNU General Public License, version 2 (GPL-2.0)](http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html)**.