Updated my_document to dict from a tuple

Created by: thoscott

The current my_document has a hanging comma, which would prevent it from rendering properly in the example cases provided by the README.

>>> my_document = {
... "name" : "Rocko Ballestrini",
... "email_address" : "test1@example.com",
... "other" : {
...     "secondary_email" : "test2@example.com",
...     "EMAIL_RECOVERY" : "test3@example.com",
...     "email_address" : "test4@example.com",
...     },
... },
>>> type(my_document)
<class 'tuple'>
>>> my_document = {
... "name" : "Rocko Ballestrini",
... "email_address" : "test1@example.com",
... "other" : {
...     "secondary_email" : "test2@example.com",
...     "EMAIL_RECOVERY" : "test3@example.com",
...     "email_address" : "test4@example.com",
...     },
... }
>>> type(my_document)
<class 'dict'>
>>>