Update copyright years

Update copyright years

publiccode.yml: Delete

The contents of this repository is quite specific, not suitable for
publiccode.yml.

README*: Update

src/choices/config.cljs: Update link

Use the new link, not the old redirected one.

README*: Small fixes

Update licenses file names

README*: Remove swh badge

README*: Fix licence badge

Update licenses

README*: Linkify email address

README*: Fix mailing list address

README*: Minor update

README*: Tiny update

Update copyright years and authors

README*: Minor update

README*: Minor update

resources/public/css/choices.css: Update

src/choices/config.cljs: Use logiciels-libres@ instead of opensource@

README.md: Update instructions