Small readme to get started

Signed-off-by: Benjamin Hesmans <benjamin.hesmans@uclouvain.be>

README.rst

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+What ?
+------
+
+Simple tool, based on `mininet <http://mininet.org/>`_, to boot a simple network
+with n paths and run experiments between two hosts.
+
+
+Usage
+-----
+
+.. code-block:: console
+
+        ./mpPerf -t topo -x xp
+
+The format for the topo file and xp file is simple but could be different based
+on the type of topo or experiments. Details should follow.
+
+basic Example
+-------------
+
+.. code-block:: console
+
+        ./mpPerf -t conf/topo/simple_para
+
+The content of simple_para is:
+
+.. code-block:: console
+
+        desc:Simple configuration with two para link
+        topoType:MultiIf
+        leftSubnet:10.0.
+        rightSubnet:10.1.
+        #path_x:delay,queueSize(may be calc),bw
+        path_0:10,10,5
+        path_1:40,40,5
+        path_2:30,30,2
+        path_3:20,20,1
+
+``topoType`` just specifies that we want to have multiple interfaces, one for
+each path.
+
+Each path is defined by 3 values, delay (one way, int, in ms), queue_size (int, 
+in packets), and bandwidth (float, in mbit/s).
+
+Once the configuration is up, you have access to the CLI. You can check route
+configuration (policy routing etc.) Just by issuing regular commands preceded
+by ``Client`` or ``Server``
+
+They are other option and experiments, but the documentation is still to be
+written.

src/conf/topo/simple_para

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+desc:Simple configuration with two para link
+topoType:MultiIf
+leftSubnet:10.0.
+rightSubnet:10.1.
+#path_x:delay,queueSize(may be calc),bw
+path_0:10,10,5
+path_1:40,40,5
+path_2:30,30,2
+path_3:20,20,1