top-level readme

Author: pancetta

CHANGELOG.md

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+Welcome to pySDC's documentation!
+=================================
+
+The `pySDC` project is a Python implementation of the spectral deferred correction (SDC) approach and its flavors,
+esp. the multilevel extension MLSDC and PFASST. It is intended for rapid prototyping and educational purposes.
+New ideas like e.g. sweepers or predictors can be tested and first toy problems can be easily implemented.
+
+
+For more details, check out `http://www.parallelintime.org/pySDC <http://www.parallelintime.org/pySDC>`_.