v0.6.2

Added

• A published documentation site at https://jaemk.github.io/mind/, with a guide
  (install, quickstart, commands, configuration, install hooks, troubleshooting),
  authoring docs, and an examples page mapping each consumer and maintainer use
  case to a runnable example.
• Example sources for the tool kind and path tokens, source lifecycle hooks,
  [source].roots subtree discovery, an authoritative [[items]] inventory, and
  a [discover].sources super-source, each verified by a test.
• The crate publishes to crates.io on release (cargo install mind-cli installs
  the mind binary), and carries repository, homepage, and documentation
  metadata.

Changed

• The README is a concise landing page; the documentation site is the primary
  reference.