docs: improve readme file

Author: e0ipso

README.md

@@ -1,7 +1,6 @@
 <h1>Widget Registry CLI<img align="right" src="https://avatars.githubusercontent.com/u/72320367?s=400&u=05a3dd94b047a4dcc00fd1850dadfcc03f790cdd&v=4" alt="Widgets logo" title="Widgets logo" width="100"></h1>
 <img src="https://js-widgets.github.io/webpack-cli/img/coverage.svg" alt="Custom Build Coverage Badge" title="Custom Build Coverage Badge">
 
-The widget registry CLI allows you to create a registry from your existing components repository. It does not matter if you are using Storybook, Fractal, ... The CLI will create the registry for you.
-
-## Turn Your Components into Widgets
+[See the documentation](https://js-widgets.github.io/webpack-cli/)
 
+[![Documentation site](https://js-widgets.github.io/webpack-cli/img/documentation-site.png)](https://js-widgets.github.io/webpack-cli/)