[Docs] add docs for youtube channel (#1072)

Co-authored-by: Deven Patel <deven298@yahoo.com>

docs/components/data-sources/overview.mdx

@@ -8,6 +8,7 @@ Embedchain comes with built-in support for various data sources. We handle the c
   <Card title="📰 PDF file" href="/components/data-sources/pdf-file"></Card>
   <Card title="📊 CSV file" href="/components/data-sources/csv"></Card>
   <Card title="📃 JSON file" href="/components/data-sources/json"></Card>
+  <Card title="📽️ Youtube Channel" href="/components/data-sources/youtube-channel"></Card>
   <Card title="📺 Youtube" href="/components/data-sources/youtube-video"></Card>
   <Card title="📝 Text" href="/components/data-sources/text"></Card>
   <Card title="📚 Documentation website" href="/components/data-sources/docs-site"></Card>

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

@@ -0,0 +1,20 @@
+---
+title: '📽️ Youtube Channel'
+---
+
+To add all the videos from a youtube channel to your app, use the data_type as `youtube_channel`.
+
+<Note>
+Make sure you have all the required packages installed before using this data type. You can install them by running the following command in your terminal.
+
+```bash
+pip install -u "embedchain[youtube]"
+```
+</Note>
+
+```python
+from embedchain import Pipeline as App
+
+app = App()
+app.add("@channel_name", data_type="youtube_channel")
+```

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

@@ -2,8 +2,7 @@
 title: '📺 Youtube'
 ---
 
-
-To add any youtube video to your app, use the data_type (first argument to `.add()` method) as `youtube_video`. Eg:
+To add any youtube video to your app, use the data_type as `youtube_video`. Eg:
 
 ```python
 from embedchain import Pipeline as App