{@linkcode} doesn’t work

You should be able to use `{@linkcode}` to have links render as code; see http://usejsdoc.org/tags-inline-link.html#link-formatting.

Regular `{@link}` works:

But `{@linkcode}` doesn't:

Searching the codebase, there already seems to be some sort of test relating to it: https://github.com/documentationjs/documentation/blob/7d74060caf3221dee8594845b8431dea4c2abf7a/__tests__/lib/parse.js#L1082

* What version of documentation.js are you using?: v7.1.0
* How are you running documentation.js (on the CLI, Node.js API, Grunt, other?): CLI