Updates README.md with gnome-extensions install procedure

README.md

@@ -14,11 +14,61 @@ specific version of the shell. This extension has only been tested on GNOME
 46 and GNOME 48, but should also work on GNOME 45.
 
 ## Installation
+
+### manually
+
 * Go to ```/.local/share/gnome-shell/extensions/```
 * ```mkdir removeclock@sudo-swe.com```. **ATTENTION**: Name of dir must match **_uuid_** in extensions' ```metadata.json``` file.
 * Copy ```metadata.json``` and ```extension.js``` into created directory.
 * Restart GNOME Shell by pressing ```Alt+F2``` and enter 'r'.
 
+### gnome-extensions
+
+* Download
+
+  ```
+  git clone https://github.com/theobori/GNOME-RemoveClock.git
+  ```
+
+* Pack
+
+  ```
+  gnome-extensions pack GNOME-RemoveClock/
+  ```
+
+* Install
+
+  ```
+  gnome-extensions install removeclock\@sudo-swe.com.shell-extension.zip 
+  ```
+
+* Log out of GNOME session
+
+  ```
+  gnome-session-quit --logout --no-prompt
+  ```
+
+* Log in to GNOME session
+
+* Verify extension is installed
+
+  ```
+  gnome-extensions list
+  removeclock@sudo-swe.com
+  ```
+
+* Enable the extension
+
+  ```
+  gnome-extensions enable removeclock@sudo-swe.com
+  ```
+
+* (When done) Disable the extension
+
+  ```
+  gnome-extensions disable removeclock@sudo-swe.com
+  ```
+
 ## License
 Standard MIT license. Feel free to modify as you please.