RCCL 2.4 update

docs/source/index.rst

@@ -0,0 +1,21 @@
+.. rocFFT documentation master file, created by
+   sphinx-quickstart on Mon Jan  8 09:51:41 2018.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to RCCL's documentation!
+==================================
+
+.. toctree::
+   :maxdepth: 4
+   :caption: Contents:
+
+   library
+   api
+   allapi
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`search`