Update README

Author: dbrattli

README.md

@@ -6,17 +6,28 @@ bindings for Fable based on Python
 
 ## Installation
 
-TBW
+TBD
 
 ## Usage
 
-TBW
+```fs
+open Fable.Python.Json
+
+let object = {| A=10; B=20 |}
+let result = json.dumps object
+```
 
 ## Auto-generation
 
 Parts of this library could benefit from code-generation based on the type
 annotations in Python [typeshed](https://github.com/python/typeshed) similar to
-ts2fable. Even so we should keep this library manually updated based on PRs to
-ensure the quality of the code.
+[ts2fable](https://github.com/fable-compiler/ts2fable). Even so we should keep
+this library manually updated based on PRs to ensure the quality of the code.
+
+Current plan:
+
+1. Add bindings for Python `ast` module (in progress)
+2. Use `ast` module to parse Python typeshed annotations
+3. Generate F# bindings