Notes
To install the Enrich addon 2.1 in Blender, make sure you are using Blender version 2.93 or above.
Once you have downloaded the addon .zip file, open Blender and follow these steps:
Go to the Addons section in Preferences (Edit menu > Preferences > Addons).
Click on 'Install...' button.
Select the addon .zip file.
Click 'Install add-on'.
Enrich addon should now be installed. Activate it by checking the checkbox near the add-on name.