Update README and describe testing method

Zygmunt Krynicki · Zygmunt Krynicki · commit c02ec2609583 · 2012-02-16T01:15:45.000+01:00
diff --git a/README b/README
@@ -7,4 +7,11 @@ http://json-schema.org/
 Installation
 ============
 
-pip install json-schema-validator
+$ pip install json-schema-validator
+
+Testing
+=======
+
+You will need tox (get it from pip) as well as python2.6 and python2.7
+
+$ tox
