Add docker file build instructions and...

- Remove readme.md files

docs/source/building/build.rst

@@ -17,10 +17,14 @@ Ensure `git <https://git-scm.com/>`_ is installed and run the following:
       git clone https://github.com/sunshinestream/sunshine.git --recurse-submodules
       cd sunshine && mkdir build && cd build
 
-Build
-^^^^^
+Compile
+^^^^^^^
 See the section specific to your OS.
 
+- :ref:`Linux <building/linux:linux>`
+- :ref:`MacOS <building/macos:macos>`
+- :ref:`Windows <building/windows:windows>`
+
 Remote Build
 ------------
 It may be beneficial to build remotely in some cases. This will enable easier building on different operating systems.