[gtk: 4/4] Merge branch 'matthiasc/for-master' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit a7bd6b094ac64a87517a388b49f2f0164c0125da
Merge: 83d8ae2f30 eeae1b1ea7
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Oct 20 01:45:17 2020 +0000

    Merge branch 'matthiasc/for-master' into 'master'
    
    Some a11y docs and fixes
    
    See merge request GNOME/gtk!2724

 docs/reference/gtk/section-accessibility.md | 48 +++++++++++++++++++++++++++--
 gtk/a11y/gtkatspicontext.c                  | 43 +++++++++++++++++---------
 gtk/gtkstack.c                              |  2 +-
 3 files changed, 74 insertions(+), 19 deletions(-)
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