Section slugs

[Dirbaio]

Currently with multilanguage sites you can localize the URL for pages by setting slug in the frontmatter.

However there is no slug support for sections. This means the only way to localize a section URL is to use url together with [[cascade]]. This is annoying since you have to "redo from scratch" the entire URL format, with : tokens, duplicating names for parent sections, etc.

Proposal: add support for slug in section pages. It would behave the obvious way, basically being equivalent to changing the directory name for the section. It would affect the URL for the section and all descendant pages.

Example:

help/
    _index.en.md    # contains no slug
    _index.es.md    # contains slug="ayuda"
    how-to-frob/
       index.en.md    # contains no slug
       index.es.md    # contains slug="como-frobear"

would result in the following paths:

help/
help/how-to-frob/
es/ayuda/
es/ayuda/como-frobear/