Allow selecting downloaded fonts + docs

[abelsromero]

Total size of fonts is 183 MB. Downloading all fonts can be an issue on some scenarios, for instance when integrating in a build pipeline like maven, .

To reduce the size of the download I have 2 proposals:

• Provide an option to download only the files for a specify theme. Some command line argument that can be read could do the trick.
• Add the description of themes features in README. I though that CN JP, KR and TW where related to Chinese, Japanese, Korean and ¿Taiwanesse? But I don't think this is true, because I have been able to render Japanese Hiragana & Katakana using only the CN theme and downloading only the CN (+ required RobotoMono) fonts.

PS: Apologies, I am being a p*** today with so many issues.

[chloerei]

You are welcome, feedback will encourage me to improve the code.

As I reply in https://github.com/chloerei/asciidoctor-pdf-cjk-kai_gen_gothic/issues/8 , I don't tend to spend time on this theme, I want to try how to integration wkhtmltopdf and asciidoctor.

[abelsromero]

I don't tend to spend time on this theme

I see.

Thanks for the tip on wkhtmltopdf, it really seems interesting and look forward to see what you can achieve. As for me, I am not using the plugin in a real project, I am just building an example for the asciidoctor-maven-examples repo. Your plugin is really good and allows me to build a complex use case for others to use as reference.

[mojavelinux]

Provide an option to download only the files for a specify theme. Some command line argument that can be read could do the trick.

Another option would be to create additional gems, one for each language subfamily. Just an idea.