message: added link to 'target' in documentation for build cache section of the guide
diff: @@ -24,7 +24,7 @@ For historical reasons, the `dev` and `test` profiles are stored in the
  same name as the profile.
  When building for another target with `--target`, the output is placed in a
  -directory with the name of the target:
  +directory with the name of the [target]:
  Directory | Example
  ----------|--------
  @@ -98,6 +98,7 @@ configuration][config]. Refer to sccache documentation for more details.
  [build scripts]: ../reference/build-scripts.md
  [config]: ../reference/config.md
  [def-workspace]: ../appendix/glossary.md#workspace '"workspace" (glossary entry)'
  +[target]: ../appendix/glossary.md#target '"target" (glossary entry)'
  [environment variable]: ../reference/environment-variables.md
  [incremental output]: ../reference/profiles.md#incremental
  [sccache]: https://github.com/mozilla/sccache
  