message: docs: update the menu names
diff: -- title: User Doc.
  +- title: User Documentation
  url: /user
  sublinks:
  - title: Installation
  url: /user/install
  - title: Configuration
  url: /user/config
  -- title: Tech Doc.
  +- title: Contributor Reference
  url: /tech
  sublinks:
  - title: Processing
  