Initial commit of Sphinx docs

Change-Id: I9fca8fb98502dffc2555f9de7f507b6f006e0e77
Signed-off-by: John DeNisco <jdenisco@cisco.com>
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+.. _cmdreference:
+
+Command Line Reference
+======================
+
+This is a reference guide for the vpp debug commands that are referenced in the within these documents. This is **NOT** a complete list. For a complete list refer to the Debug CLI section of the 
+`Source Code Documents <https://docs.fd.io/vpp/18.07/clicmd.html>`_.
+
+The debug CLI can be executed from a su shell using the vppctl command.
+
+.. code-block:: console
+
+    # sudo bash
+    # vppctl show interface
+                  Name               Idx       State          Counter          Count     
+    TenGigabitEthernet86/0/0          1         up       rx packets               6569213
+                                                         rx bytes              9928352943
+                                                         tx packets                 50384
+                                                         tx bytes                 3329279
+    TenGigabitEthernet86/0/1          2        down      
+    VirtualEthernet0/0/0              3         up       rx packets                 50384
+                                                         rx bytes                 3329279
+                                                         tx packets               6569213
+                                                         tx bytes              9928352943
+                                                         drops                       1498
+    local0                            0        down      
+
+Commands can also be executed from the vppct shell.
+
+.. code-block:: console
+
+    # vppctl
+        _______    _        _   _____  ___ 
+     __/ __/ _ \  (_)__    | | / / _ \/ _ \
+     _/ _// // / / / _ \   | |/ / ___/ ___/
+     /_/ /____(_)_/\___/   |___/_/  /_/    
+    
+    vpp# show interface 
+                  Name               Idx       State          Counter          Count     
+    TenGigabitEthernet86/0/0          1         up       rx packets               6569213
+                                                         rx bytes              9928352943
+                                                         tx packets                 50384
+                                                         tx bytes                 3329279
+    TenGigabitEthernet86/0/1          2        down      
+    VirtualEthernet0/0/0              3         up       rx packets                 50384
+                                                         rx bytes                 3329279
+                                                         tx packets               6569213
+                                                         tx bytes              9928352943
+                                                         drops                       1498
+    local0                            0        down      
+
+.. toctree::
+
+   interface/index.rst
+   vhost/index.rst