Note about deprecated LiveShare Extension Pack (#6349)

Fixes #6255

learn/collaboration/live-share.md

@@ -17,6 +17,8 @@ When it comes to Live Share, seeing is believing. Check out this video to see Li
 
 <iframe src="https://youtube.com/embed/A2ceblXTBBc?rel=0&amp;disablekb=0&amp;modestbranding=1&amp;showinfo=0" frameborder="0" allowfullscreen title="Collaborate with Live Share"></iframe>
 
+>**Note**: The video above mentions the deprecated Live Share Extension Pack and Live Share Audio extension. To follow along with the video, you only need to install the [Live Share](https://marketplace.visualstudio.com/items?itemName=MS-vsliveshare.vsliveshare) extension.
+
 When you share a collaborative session, the person you're working with sees the context of the workspace in their editor. This means your classmate can read the code you shared without having to clone a repo or install any dependencies your code relies on. They can help you with your code in the Visual Studio Code environment that's familiar to them.
 
 Each of you can open files, navigate, edit code, or highlight - and changes are instantly reflected. As you edit you can see your classmate's cursor, jump to the same location, and follow their actions.