Update instructions for loading unpacked extension

Author: jellesiderius

README.md

@@ -26,7 +26,7 @@ A Chrome and Edge extension that works with the [Sidworks DevTools Shopware](htt
 1. Open Chrome and go to `chrome://extensions/`
 2. Enable **Developer mode** (toggle in top-right corner)
 3. Click **Load unpacked**
-4. Navigate to and select this `chrome-extension/` directory
+4. Navigate to and select the unpacked directory
 5. The [Sidworks DevTools plugin](https://github.com/sidworks-dev/sw-plugin-devtools) icon will appear in your toolbar
 
 ### Configure Extension