Fix typo. (#745)

Closes #744

Author: tseaver

docs/start.md

@@ -122,7 +122,7 @@ For example, if the printed JSON is the following:
 You can access the data like this:
 
 ```python
-print('Num 5 cent stamps: %d'.format(response['count'])
+print('Num 5 cent stamps: %d'.format(response['count']))
 print('First stamp name: %s'.format(['items'][0]['name']))
 ```
 
@@ -133,4 +133,4 @@ Use the [APIs Explorer](http://developers.google.com/api-client-library/python/r
 ## Library reference documentation
 
 [Core library documentation](http://googleapis.github.io/google-api-python-client/docs/epy/index.html).
-and [Library reference documentation by API](dyn/index.md). is available.
+and [Library reference documentation by API](dyn/index.md). is available.