message: doc (book)[03/14]: "Getting Started" index: link "crate" to glossary entry
diff: ## Getting Started
  -To get started with Cargo, install Cargo (and Rust) and set up your first crate.
  +To get started with Cargo, install Cargo (and Rust) and set up your first
  +[*crate*][def-crate].
  * [Installation](installation.md)
  * [First steps with Cargo](first-steps.md)
  +
  +[def-crate]: ../appendix/glossary.md#crate '"crate" (glossary entry)'
  