Add description to index.rst

michaelbuehlmann · Aug 30, 2017 · d890946 · d890946
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    Catalog Analyzer: A library for Spherical Fourier Bessel (SFB) Decomposition
 
+CatAna is a C++ library and Python package to perform fast spherical Fourier Bessel transformation (Fourier transformation in spherical coordinates) on discrete, point-like datasets.
 
-The code is hosted on `GitHub <https://github.com/michaelbuehlmann/CatAna>`_
+The code is hosted on `GitHub <https://github.com/michaelbuehlmann/CatAna>`_. Please contact the author if you have any questions, find bugs or have ideas to improve CatAna.
 
 CatAna's documentation
 ======================