Added README with markdown syntax.

README.md

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+##What is Pcapy?##
+
+Pcapy is a Python extension module that enables software written in
+Python to access the routines from the pcap packet capture library.
+
+From libpcap's documentation: "Libpcap is a system-independent
+interface for user-level packet capture. Libpcap provides a portable
+framework for low-level network monitoring. Applications include
+network statistics collection, security monitoring, network debugging,
+etc."
+
+##What makes pcapy different from the others?##
+
+ * works with Python threads.
+ * works both in UNIX with libpcap and Windows with WinPcap.
+ * provides a simpler Object Oriented API.
+
+##Getting Pcapy##
+
+Current and past releases are available from
+https://github.com/CoreSecurity/pcapy.
+
+##Setup##
+
+###Quick start###
+
+Grab the latest stable release, unpack it and run 'python setup.py
+install' from the directory where you placed it. Isn't that easy?
+
+###Requirements###
+
+ * A Python interpreter. Versions 2.1.3 and newer are known to work.
+ * A C++ compiler. GCC G++ 2.95, as well as Microsoft Visual Studio
+   6.0, are known to work.
+ * Libpcap 0.7.2 or newer. Windows user are best to check WinPcap 3.0
+   or newer.
+ * A recent release of Pcapy.
+
+###Compiling the source and installing###
+
+As this extension is written in C++ it needs to be compiled for the
+host system before it can be accessed from Python. Fortunately this
+process has been made easy by the setup.py script. In order to compile
+and install the source execute the following command from the
+directory where the pcapy's distribution has been unpacked: 'python
+setup.py install'. This will install the extension into the default
+Python's modules path; note that you might need special permissions to
+write there. For more information on what commands and options are
+available from setup.py, run 'python setup.py --help-commands'.
+
+This extension has been tested under Linux and Windows systems
+and is known to work there, but it ought to work out-of-the-box on any
+system where Python and libpcap are available.
+
+##Licensing##
+
+This software is provided under under a slightly modified version of
+the Apache Software License. See the accompanying LICENSE file for
+more information.
+
+##Contact Us##
+
+Whether you want to report a bug, send a patch or give some
+suggestions on this package, drop us a few lines at
+oss@coresecurity.com.