Add https://youtu.be/WwXnljc7ZUM to docs (#15870)

Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

.github/workflows/docs.yml

@@ -34,7 +34,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: ${{ github.event.pull_request.head.repo.full_name || github.repository }}
-          token: ${{ secrets.GITHUB_TOKEN }}
+          token: ${{ secrets.PERSONAL_ACCESS_TOKEN || secrets.GITHUB_TOKEN }}
           ref: ${{ github.head_ref || github.ref }}
           fetch-depth: 0
       - name: Set up Python