See if we can make rust-lang/mdBook#1563 happen somehow. There are several options for this:

• Help upstream implement this (preferred)
• Implement it ourselves by post-processing the generated HTML.

Post-processing the HTML could perhaps even be done using a new template engine (google/mdbook-i18n-helpers#70). It would require us to assign the rendered Markdown ({{{ content }}} in handlebars) to a variable or block and then filter it somehow.