Add version and license badges.

Author: Julian

README.rst

@@ -1,5 +1,9 @@
+.. image:: https://img.shields.io/pypi/v/jsonschema.svg
+    :target: https://pypi.python.org/pypi/jsonschema
 .. image:: https://travis-ci.org/Julian/jsonschema.svg?branch=master
     :target: https://travis-ci.org/Julian/jsonschema
+.. image:: https://img.shields.io/pypi/l/jsonschema.svg
+    :target: https://pypi.python.org/pypi/jsonschema
 
 ==========
 jsonschema