Reformat getting started

doc/source/getting_started/index.rst

+Getting Started
+===============
+
 Introduction
-============
+------------
+
+teqp is a C++-based library with wrappers. It was written because implementing EOS (particularly working out the derivatives) is a painful , error-prone, and slow process.  The advent of automatic differentiation makes the implementation of EOS as fast as hand-written derivatives, and much easier to implement without errors.
 
-teqp is a C++-based library with wrappers. The documentation is based on the Python wrapper because it can be readily integrated with the documentation tools and can be auto-generated at documentation build time.
+The documentation is based on the Python wrapper because it can be readily integrated with the documentation tools and can be auto-generated at documentation build time.
 
 Installation
-============
+------------
 
 Python
-------
+^^^^^^
 
 The library can be installed with:
 
@@ -24,4 +29,9 @@ If you desire to build teqp yourself, it is recommended to pull from github and
     git clone --recursive https://github.com/usnistgov/teqp
     cd teqp
     python setup.py bdist_wheel
-    pip install dist/*.whl # or replace with the appropriate binary wheel
\ No newline at end of file
+    pip install dist/*.whl # or replace with the appropriate binary wheel
+
+C++
+^^^
+
+The build is cmake based.  There are targets available for an interface library, etc.  Please see ``CMakeLists.txt``
\ No newline at end of file