Add documentation link

README.md

@@ -12,6 +12,7 @@ We would love to see how you use this awesome admin template. You can notify us
 ![Gentelella Bootstrap Admin Template](https://cdn.colorlib.com/wp/wp-content/uploads/sites/2/gentelella-admin-template-preview.jpg "Gentelella Theme Browser Preview")
 
 **[Template Demo](https://colorlib.com/polygon/gentelella/index.html)**
+**[Documentation](https://puikinsh.github.io/gentelella/)**
 
 ## Installation via Package Manager