[Docs] Revamp documentation (#1010)

docs/components/data-sources/youtube-video.mdx

@@ -0,0 +1,13 @@
+---
+title: '📺 Youtube'
+---
+
+
+To add any youtube video to your app, use the data_type (first argument to `.add()` method) as `youtube_video`. Eg:
+
+```python
+from embedchain import Pipeline as App
+
+app = App()
+app.add('a_valid_youtube_url_here', data_type='youtube_video')
+```