Update README.md

Author: erwan-joly

README.md

@@ -20,8 +20,3 @@ We are not responsible of any damages caused by bad usage of our source. Please
 We recommend usage of : 
 * [Roslynator extension](https://github.com/JosefPihrt/Roslynator).
 * [Resharper](https://www.jetbrains.com/resharper/)
-
-## How does it work ? ##
-<p align="center">
-  <img src="documentation.png"/>
-</p>