proposal: Add option to install `mdbook-mermaid`

[jorgecarleitao]

Checklist

• [X] I am using the latest version of this action.
• [X] I have read the latest README and followed the instructions.
• [X] I have read the latest GitHub Actions official documentation and learned the basic spec and concepts.

Describe your proposal

Have an option / boolean parameter to install https://github.com/badboy/mdbook-mermaid, which allows to compile mermaid diagrams in guides docs.

Describe the solution you'd like

A simple parameter to optionally install mdbook-mermaid

Describe alternatives you've considered

Doing it manually

Additional context

None

[bgianfo]

I think generic preprocessor support would be awesome, there are a few I am interested in personally:

• mdbook-admonish
• mdbook-mermaid
• mdbook-toc
• mdbook-linkcheck

[peaceiris]

Other preprocessors except mdbook-admonish have pre-built binaries, so it looks possible to implement them.

Preprocessor name	Binary assets
mdbook-admonish	No
mdbook-mermaid	Yes
mdbook-toc	Yes
mdbook-linkcheck	Yes

[bgianfo]

Just as an FYI, mdbook-admonish now produces pre-built binaries.

[yaleman]

I'd like to see mdbook-template as well 😄

https://github.com/sgoudham/mdbook-template/releases/tag/v1.0.0

[zanglg]

I found mdbook-kroki-preprocessor, another excellent preprocessor which provides a unified API with support for many well-known textual graphs. Hope also give a support of.

[peaceiris]

👀

[expikr]

and mdbook-katex

https://github.com/SichangHe/mdbook_katex_static_css/pull/8#discussion_r1161554789

I propose editing the title of this issue to be about Preprocessors in general.

[kevinmichaelchen]

I'd like to add the mdbook-d2 plugin for consideration.

https://d2lang.com/

[bartvanderwal]

I found this issue wanting support for mdbook-quiz 🙏.