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+=====================
+About these documents
+=====================
+
+These documents are generated from `reStructuredText`_ sources by `Sphinx`_, a
+document processor specifically written for the Python documentation.
+
+.. _reStructuredText: http://docutils.sf.net/rst.html
+.. _Sphinx: http://sphinx.pocoo.org/
+
+.. In the online version of these documents, you can submit comments and suggest
+   changes directly on the documentation pages.
+
+We are always welcome for your comments about the documentation, catched typos, and
+other contributions.
+
+See :ref:`reporting-bugs` for information how to report bugs in this documentation, or ndnSIM itself.