Add missing word in two_factor_auth.rst
@@ -33,5 +33,5 @@ For example:
g = github3.login('sigmavirus24', 'my_password',
two_factor_callback=my_two_factor_function)
-Then each the API tells github3.py it requires a Two Factor Authentication
+Then each time the API tells github3.py it requires a Two Factor Authentication
code, github3.py will call ``my_two_factor_function`` which prompt you for it.
