[TASK] Add javascript integration to README

README.md

@@ -28,6 +28,15 @@ plugin.tx_sgyoutube {
 }
 ```
 
+### JavaScript integration
+
+```javascript
+import LightboxManager from 'lightboxManager';
+
+// You can change the lightboxSettings however you like but .sg-youtube-item was the old selctor
+LightboxManager.init({props: {type: 'video'}, lightboxSettings: {selector: '.sg-youtube-item'}});
+```
+
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