doc: add introductory documentation files

Add documentation files that act as the starting points for the rest of
the documentation and introduce a beginner to Rune.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/doc/index.rst b/doc/index.rst
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+.. Rune Game Engine documentation master file, created by
+   sphinx-quickstart on Wed Oct 16 23:36:04 2024.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Rune Game Engine documentation
+==============================
+
+Rune is a high-performance game engine written entirely in C and designed to
+support Quake-style, "boomer" shooters. It is free and open source, and has both
+2D and 3D capabilities. If you are new to this documentation, we recommend that
+you read the `introduction page <introduction.html>`_ to get an overview of features and specs that
+Rune has to offer. Please note that improvements to the documentation are
+welcome; join the rune-engine mailing list at lists.gymli.org if you want to help
+out.
+
+User-oriented documentation
+---------------------------
+
+The following manuals are written for game or application developers who are
+trying to get the engine to work for their own applications or libraries.
+
+.. toctree::
+   :maxdepth: 1
+
+   Introduction <introduction.rst>
+   List of features <feature-list.rst>
+   Core API <core/index.rst>
+   Network API <network/index.rst>
+   Rendering API <render/index.rst>
+   UI API <ui/index.rst>
+   Sound API <sound/index.rst>
+   Reporting issues <reporting-issues.rst>
+
+Working with upstream
+---------------------
+
+The guides for interacting with the engine's development community and getting
+your work upstream.
+
+.. toctree::
+   :maxdepth: 1
+
+   Development process <dev-process.rst>
+   Coding style <coding-style.rst>
+   Submitting patches <submitting-patches.rst>