docs: Regroup the tree support parts
authorMatthias Clasen <mclasen@redhat.com>
Sat, 6 Jun 2020 17:29:55 +0000 (13:29 -0400)
committerMatthias Clasen <mclasen@redhat.com>
Sat, 6 Jun 2020 17:54:58 +0000 (13:54 -0400)
commit9f335d3ee6cbbaed89e5a2aa5c245f2fb8971e47
tree7489ca55d40785c75f255a4c0371c17c15285b14
parent856c8950ffd5538e59ffa27b843175a17c3b14f0
docs: Regroup the tree support parts

Give the chapter a title, and put some things in sections.
docs/reference/gtk/gtk4-docs.xml