org: better sitemap

* doc/org/init.el.in: List pages in a nested list according to
HTML_LINK_UP links.
13 jobs for next in 124 minutes and 34 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #42304
alpine-gcc

00:40:51

passed #42305
arch-clang

01:08:31

passed #42306
arch-gcc-glibcxxdebug

00:48:28

passed #42303
debian-gcc-snapshot

01:16:50

passed #42301
debian-stable-gcc

00:34:33

passed #42302
debian-unstable-gcc-coverage

00:43:55

88.8%
passed #42309
debpkg-stable

02:01:46

passed #42310
debpkg-unstable

02:01:54

passed #42307
mingw-shared

00:09:23

passed #42308
mingw-static

00:07:58

passed #42311
rpm-pkg

00:41:15

 
  Publish
passed #42312
dput
publish-rpm

00:00:24

passed #42313
dput
publish-unstable

00:02:12