[docs] Convert docs index page into Sphinx.
 - Work in progress, this is mostly important because it lets us incrementally migrate the remaining documentation.
 - Lots of styling, editing, and integration work yet to come…
 - PR12589

llvm-svn: 155133
diff --git a/llvm/docs/development_process.rst b/llvm/docs/development_process.rst
new file mode 100644
index 0000000..f73bbf4
--- /dev/null
+++ b/llvm/docs/development_process.rst
@@ -0,0 +1,24 @@
+.. _development_process:
+
+Development Process Documentation
+=================================
+
+ * `LLVM Project Guide <Projects.html>`_
+
+   How-to guide and templates for new projects that *use* the LLVM
+   infrastructure.  The templates (directory organization, Makefiles, and test
+   tree) allow the project code to be located outside (or inside) the ``llvm/``
+   tree, while using LLVM header files and libraries.
+
+ * `LLVMBuild Documentation <LLVMBuild.html>`_
+
+   Describes the LLVMBuild organization and files used by LLVM to specify
+   component descriptions.
+
+ * `LLVM Makefile Guide <MakefileGuide.html>`_
+
+   Describes how the LLVM makefiles work and how to use them.
+
+ * `How To Release LLVM To The Public <HowToReleaseLLVM.html>`_
+
+   This is a guide to preparing LLVM releases. Most developers can ignore it.