Change README screenshot to new image

Updated the screenshot in the README to a new image.

Author: jellesiderius

README.md

@@ -2,7 +2,7 @@
 
 Never hunt for a Twig file again. Sidworks DevTools reveals the exact template and block behind every Shopware 6 element and lets you jump straight into your IDE with a single click.
 
-![Screenshot](./docs/img1.png)
+![Screenshot](./docs/sw-devtools.png)
 
 ## Features