Include written-in-python and funding info in docs intro

docs/index.rst

@@ -21,14 +21,25 @@ smif
     :target: https://anaconda.org/conda-forge/smif
     :alt: conda-forge package
 
-**smif** (a simulation modelling integration framework) is a framework for
-handling the creation of system-of-systems models. The framework handles inputs
-and outputs, dependencies between models, persistence of data and the
-communication of state across years.
+**smif** is a framework for handling the creation of system-of-systems models.
+The framework handles inputs and outputs, dependencies between models,
+persistence of data and the communication of state across years.
 
 This early version of the framework handles simulation models that simulate the
-operation of a system within a year and exposes an interface to a planning
-module which will allow different algorithms to be used against a common API.
+operation of a system within a year. **smif** will expose an interface to a
+planning module which allows different decision-making algorithms to work
+against a common API.
+
+**smif** is written in Python (>=3.5) and uses wrappers which implement a
+consistent interface in order to run models written in many languages.
+
+A word from our sponsors
+========================
+
+**smif** is being written and developed in the `Environmental Change Institute,
+in the University of Oxford <http://www.eci.ox.ac.uk>`_ funded by EPSRC as part
+of the `Infrastructure Transitions Research Consortium
+<http://www.itrc.org.uk/>`_ MISTRAL research programme.
 
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