Convert HowToReleaseLLVM.html to reST

Patch by Alexander Zinenko.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169608 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/development_process.rst b/docs/development_process.rst
index 74324b9..ecd4c6a 100644
--- a/docs/development_process.rst
+++ b/docs/development_process.rst
@@ -9,6 +9,7 @@
    MakefileGuide
    Projects
    LLVMBuild
+   HowToReleaseLLVM
 
 * :ref:`projects`
 
@@ -26,6 +27,6 @@
 
   Describes how the LLVM makefiles work and how to use them.
 
-* `How To Release LLVM To The Public <HowToReleaseLLVM.html>`_
+* :doc:`HowToReleaseLLVM`
 
   This is a guide to preparing LLVM releases. Most developers can ignore it.