The implementation adds three plugins to the remark processor:
* remove support for code blocks triggered by indented
text - only gfm triple backticks are supported; and also adds support for
dgeni inline tags.
* ignore content within `code-example` and `code-tabs` elements. This prevents
the content being accidentally treated as markdown
* ignore dgeni inline tags, e.g. `{@link ... }` to prevent the content of
the links from being accidentally treated as markdown