Merge pull request #532 from delirious-lettuce/fix_docstring_parameter

Rename docstring parameter to match function argument

Author: thinkingserious

sendgrid/helpers/mail/mail.py

@@ -330,7 +330,7 @@ def sections(self):
     def add_section(self, section):
         """Add a Section to this Mail.
 
-        :type attachment: Section
+        :type section: Section
         """
         self._sections.append(section)