add more readme

README.md

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 Gython
 ======
+
+This project is currently a for-fun work in progress.
+
+The main goals of this project are to learn about programming languages by trying to rewrite [CPython][] 3.5.0 in [Go][].
+
+CPython:https://github.com/python/cpython
+Go:https://github.com/golang/go/
+
+## Progress
+### Scanner
+So far I have a mostly working scanner/tokenizer. The main goal was to be able to generate similar output as running `python3 -m tokenize --exact <script.py>`.
+Currently there are a few small differences between the output format, but the tokens being produced are the same.
+
+
+### Parser
+Next up is going to be writing the parser to be able to generate an AST which will match the form provided from:
+```python
+import ast
+import pprint
+
+
+def main(filename):
+    with open(filename, 'r') as fp:
+        contents = fp.read()
+    root = ast.parse(contents, filename)
+    pprint.pprint(ast.dump(root, include_attributes=True))
+
+
+if __name__ == '__main__':
+    import sys
+    main(sys.argv[1])
+```
+
+```bash
+python3 parse.py <script.py>
+```
+
+### Compiler
+The compiler will be up after the parser. The compiler will be responsible for converting the parsed AST into Python bytecode.
+
+### Interpreter
+The interpreter will be up after the compiler and will be able to execute on Python bytecode.