docs: convert articles to reructuredtext

This uses the previously added scripts to convert the documentation to
reStructuredText, which is both easier to read offline, and can be used
to generate modern HTML for online documentation.

No modification to the generated results have been done.

Acked-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4630>

docs/developers.rst

@@ -0,0 +1,25 @@
+Developers
+==========
+
+Both professional and volunteer developers contribute to Mesa.
+
+`VMware <https://www.vmware.com/>`__ employs several of the main Mesa
+developers including Brian Paul and Keith Whitwell.
+
+In the past, Tungsten Graphics contracts implemented many Mesa features
+including:
+
+-  DRI drivers for Intel i965, i945, i915 and other chips
+-  Advanced memory manager and framebuffer object support
+-  Shading language compiler and OpenGL 2.0 support
+-  MiniGLX environment
+
+Other companies including `Intel <https://01.org/linuxgraphics>`__ and
+RedHat also actively contribute to the project. Intel has recently
+contributed the new GLSL compiler in Mesa 7.9.
+
+`LunarG <https://www.lunarg.com/>`__ can be contacted for custom Mesa /
+3D graphics development.
+
+Volunteers have made significant contributions to all parts of Mesa,
+including complete device drivers.