Update README

Author: Shillaker

README.md

@@ -1,22 +1,30 @@
-# Faasm CPython build
+# Faasm CPython WebAssembly build
 
-The CPython build uses a fork of 
-[CPython](https://github.com/Shillaker/cpython/tree/faasm) along with other
-Python module forks in the `third-party` directory.
+This build cross-compiles CPython and a number of Python modules to WebAssembly
+for use in [Faasm](https://github.com/lsds/faasm).
+
+You can see a list of the installed modules in the
+[`install_modules.sh`](scripts/install_modules.sh) script.
+
+The build uses the [Faasm
+toolchain](https://github.com/Shillaker/faasm-toolchain) to cross-compile both 
+CPython and C-extensions to WebAssembly.
+
+## Code changes
+
+The CPython build uses this slightly modified [fork of
+CPython](https://github.com/Shillaker/cpython/tree/faasm).
 
 To see the changes made to CPython, see [this
 compare](https://github.com/python/cpython/compare/v3.8.2...Shillaker:faasm).
-For numpy, see [this
-compare](https://github.com/numpy/numpy/compare/v1.19.2...Shillaker:faasm).
 
-The build uses the [Faasm
-toolchain](https://github.com/Shillaker/faasm-toolchain) to compile CPython and
-C-extensions to WebAssembly (for use with
-[Faasm](https://github.com/lsds/faasm)).
+A similar (small) list of changes for numpy can be seen
+[here](https://github.com/numpy/numpy/compare/v1.19.2...Shillaker:faasm).
 
 CPython is built statically, some notes on this process can be found 
-[here](https://wiki.python.org/moin/BuildStatically). The Faasm CPython build 
-borrows a lot of configuration from 
+[here](https://wiki.python.org/moin/BuildStatically). 
+
+Several of the code changes to CPython and numpy were borrowed from 
 [pyodide](https://github.com/iodide-project/pyodide).
 
 ## Set-up