Remove unused "About" and squash its warning (#50)

Signed-off-by: Dean Roehrich <dean.roehrich@hpe.com>

Author: roehrich-hpe

docs/about.md

@@ -6,7 +6,6 @@ repo_url: https://github.com/NearNodeFlash/NearNodeFlash.github.io
 copyright: '© Copyright 2023 Hewlett Packard Enterprise Development LP'
 nav:
   - Home: index.md
-  #- About: about.md
   - 'User Guides':
     - guides/index.md
     - 'Initial Setup': 'guides/initial-setup/readme.md'