Update auto-generated-docs.mdx to display the new UI (#43373)

## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.

YES

## What kind of change does this PR introduce?

docs update

## What is the current behavior?

Shows the old UI instructions and video

## What is the new behavior?

Updated with new UI instructions and video

## Additional context

Add any other context or screenshots.

apps/docs/content/guides/api/rest/auto-generated-docs.mdx

@@ -6,13 +6,15 @@ description: 'Supabase provides documentation that updates automatically.'
 
 Supabase generates documentation in the [Dashboard](/dashboard) which updates as you make database changes.
 
-1. Go to the [API](/dashboard/project/_/api) page in the Dashboard.
-2. Select any table under **Tables and Views** in the sidebar.
-3. Switch between the JavaScript and the cURL docs using the tabs.
+1. Go to the [Project Settings](/dashboard/project/_/settings/general) page in the Dashboard.
+2. Select Data API -> Docs
+3. Select any table under **Tables and Views** in the sidebar.
+4. Switch between the JavaScript and the cURL docs using the tabs.
+5. You may also select the SUPABASE_KEY to use.
 
 <video width="99%" muted playsInline controls={true}>
   <source
-    src="https://xguihxuzqibwxjnimxev.supabase.co/storage/v1/object/public/videos/docs/api/api-docs.mp4"
+    src="https://xguihxuzqibwxjnimxev.supabase.co/storage/v1/object/public/videos/docs/api/api-docs(2).mp4"
     type="video/mp4"
   />
 </video>