Adding language format to code sample in readme.

README.md

@@ -22,24 +22,26 @@ Using Django-Pyvows
 There is no need to modify your project to use Django-PyVows. You only have to create the vows
 as you usually would, start the server and call your project urls:
 
-    from pyvows import Vows, expect
+```python
+from pyvows import Vows, expect
 
-    from django_pyvows.context import DjangoHTTPContext
+from django_pyvows.context import DjangoHTTPContext
 
-    @Vows.batch
-    class ContextTest(DjangoHTTPContext):
+@Vows.batch
+class ContextTest(DjangoHTTPContext):
 
-        def setup(self):
-            self.start_server()
+    def setup(self):
+        self.start_server()
 
-        def topic(self):
-            return self.get('/mygreaturl/')
+    def topic(self):
+        return self.get('/mygreaturl/')
 
-        def should_be_a_success(self, topic):
-            expect(topic.getcode()).to_equal(200)
+    def should_be_a_success(self, topic):
+        expect(topic.getcode()).to_equal(200)
 
-        def should_return_the_correct_response_type(self, topic):
-            expect(topic.headers.type).to_equal("text/html")
+    def should_return_the_correct_response_type(self, topic):
+        expect(topic.headers.type).to_equal("text/html")
+```
 
 To work you only need to override the `get_settings` method from DjangoHTTPContext to 
 return the path of your settings module. The default `get_settings` returns `"settings"`.