Fixed a bug with unions. Also made README better`

README.md

@@ -1,2 +1,25 @@
-capnpc-python-cpp
-=================
+#capnpc-python-cpp
+
+## Downloading
+
+For now, this code is only on github, although I plan to put it up on PyPi at somepoint.
+
+You can clone the repo like so:
+    git clone https://github.com/jparyani/capnpc-python-cpp.git
+
+## Requirements
+
+A system-wide installation of the Capnproto C++ library, compiled with the 
+-fpic flag. All you need to do is follow the official [installation docs](http://kentonv.github.io/capnproto/install.html)].
+
+You also need a working version of the latest [Cython](http://cython.org/) installed. This is easily done with `pip install 'cython >= .19.1'
+
+## Building and installation
+
+`cd` into the repo directory and run `python setup.py install`
+
+## Documentation/Example
+At the moment, there is no documenation, but the library is almost a 1:1 clone of the [Capnproto C++ Library](http://kentonv.github.io/capnproto/cxx.html)
+
+The following example should suffice to show off the differences:
+    TODO