[librsvg: 21/21] Merge branch 'devel-docs' into 'main'

[Marge Bot <marge-bot src gnome org>]

commit 6539b77e0fe6bd23cd0a305ca3bcd27fe4584116
Merge: 5f1f4ccdd 31af1bbb5
Author: Marge Bot <marge-bot gnome org>
Date:   Thu Aug 18 02:48:11 2022 +0000

    Merge branch 'devel-docs' into 'main'
    
    Development documentation
    
    See merge request GNOME/librsvg!729

 .gitignore                       |   2 -
 .gitlab-ci.yml                   |  16 +++++
 ci/container_builds.yml          |   4 +-
 ci/gen-devel-docs.sh             |   7 +++
 devel-docs/Makefile              |  20 ++++++
 devel-docs/README.md             |   6 ++
 devel-docs/ci.rst                |  19 ++++++
 devel-docs/conf.py               |  52 ++++++++++++++++
 devel-docs/contributing.rst      | 100 ++++++++++++++++++++++++++++++
 devel-docs/devel_environment.rst | 129 +++++++++++++++++++++++++++++++++++++++
 devel-docs/index.rst             |  89 +++++++++++++++++++++++++++
 devel-docs/product.rst           |  91 +++++++++++++++++++++++++++
 12 files changed, 531 insertions(+), 4 deletions(-)
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