Add 簡便な行組版ルール（案）

[xfq]

Bin-sensei's "簡便な行組版ルール(案)" (Simple Line Composition Rules) document is often used as a reference, but it was only available in an APL report. This pull request converts it into HTML so that it's easier to refer to it.

Preview: https://xfq.github.io/testing/jlreq-line-composition/

See also: https://lists.w3.org/Archives/Public/public-i18n-japanese/2021JulSep/0119.html

[himorin]

How about to use images (or images_ja?) to align with the main document?

@kidayasuo it's an initial converted one, and how about to first merge and fix once anyone find any error?

[kidayasuo]

I agree to merge whatever the initial state available, and then improve / fix to make it version 1.0.

[r12a]

I assume @xfq that you're planning to add this to the /docs folder when you add it to the jlreq repo ?

[xfq]

How about to use images (or images_ja?) to align with the main document?

Good idea. I have updated the PR to use images. I didn't use images_ja because this is a single-language document (at least for now).

[xfq]

I assume @xfq that you're planning to add this to the /docs folder when you add it to the jlreq repo ?

Right.

[himorin]

per chat with @kidayasuo , let's merge this at this point (seems all satisfied with this configuration), and fix with another PR(s) if anything found later.

[r12a]

@himorin I think it would be useful to add links to this and the other /doc pages on the jlreq home page. Perhaps under "Related documents" ?

[himorin]

@himorin I think it would be useful to add links to this and the other /doc pages on the jlreq home page. Perhaps under "Related documents" ?

I would want to do this as a part of #292, and will raise PR shortly.