Initial commit of Sphinx docs

Change-Id: I9fca8fb98502dffc2555f9de7f507b6f006e0e77
Signed-off-by: John DeNisco <jdenisco@cisco.com>
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+.. _fast:
+
+================================
+Fast, Scalable and Deterministic
+================================
+
+* `Continuous integration and system testing <https://wiki.fd.io/view/CSIT#Start_Here>`_
+
+  * Including continuous & extensive, latency and throughput testing
+
+* Layer 2 Cross Connect (L2XC), typically achieve 15+ Mpps per core.
+* Tested to achieve **zero** packet drops and ~15µs latency.
+* Performance scales linearly with core/thread count
+* Supporting millions of concurrent lookup tables entries
+
+Please see :ref:`performance` for more information.