Check in a simple pure-python based Markdown previewer.

third_party/Python-Markdown/README.md

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+[Python-Markdown][]
+===================
+
+[![Build Status](http://img.shields.io/travis/waylan/Python-Markdown.svg)](https://travis-ci.org/waylan/Python-Markdown)
+[![Coverage Status](https://img.shields.io/coveralls/waylan/Python-Markdown.svg)](https://coveralls.io/r/waylan/Python-Markdown?branch=master)
+[![Downloads](http://img.shields.io/pypi/dm/Markdown.svg)](https://pypi.python.org/pypi/Markdown#downloads)
+[![Latest Version](http://img.shields.io/pypi/v/Markdown.svg)](http://pypi.python.org/pypi/Markdown)
+[![BSD License](http://img.shields.io/badge/license-BSD-yellow.svg)](http://opensource.org/licenses/BSD-3-Clause)
+
+This is a Python implementation of John Gruber's [Markdown][]. 
+It is almost completely compliant with the reference implementation,
+though there are a few known issues. See [Features][] for information 
+on what exactly is supported and what is not. Additional features are 
+supported by the [Available Extensions][].
+
+[Python-Markdown]: https://pythonhosted.org/Markdown/
+[Markdown]: http://daringfireball.net/projects/markdown/
+[Features]: https://pythonhosted.org/Markdown/index.html#Features
+[Available Extensions]: https://pythonhosted.org/Markdown/extensions/index.html
+
+
+Documentation
+-------------
+
+Installation and usage documentation is available in the `docs/` directory
+of the distribution and on the project website at 
+<https://pythonhosted.org/Markdown/>.
+
+Support
+-------
+
+You may ask for help and discuss various other issues on the [mailing list][] and report bugs on the [bug tracker][].
+
+[mailing list]: http://lists.sourceforge.net/lists/listinfo/python-markdown-discuss
+[bug tracker]: http://github.com/waylan/Python-Markdown/issues