Update README.md

Update installation instructions

README.md

@@ -5,13 +5,13 @@ Combine with QLCPlus to have a fully open source lighting system
 
 # Install
 
-Clone this repo and remember the folder where you put it
+In the `Code...` menu download this repo as a zip file and remember the folder where you put it
 
 1. Install Blender 2.8 or higher.
 2. `Edit | Preferences` menu opens the preferences dialog
 3. Select the `Add-ons` tab
 4. Press the `Install...` button
-5. Select the `__init__.py` file in the folder you cloned into
+5. Select the zip file you downloaded
 6. Press the `Install Addon` button
 7. Close the preferences dialog
 8. ...
@@ -126,4 +126,4 @@ Alternatively, I would be very happy to accept high quality PRs to improve the p
 
 Many thanks to the below companies and individuals who have funded me to work on this addon.
 
-* Skeldon Società Cooperativa, Italy
+* Skeldon Società Cooperativa, Italy