Add extra line on account name in readme (#193)

Author: nielstenboom

README.rst

@@ -103,6 +103,9 @@ Where:
 - :code:`<password>` is the password for your Snowflake user.
 - :code:`<account_name>` is the name of your Snowflake account.
 
+Include the region in the `<account_name>` if applicable, more info `here
+<https://docs.snowflake.com/en/user-guide/connecting.html#your-snowflake-account-name>`_.
+
 You can optionally specify the initial database and schema for the Snowflake session by including them at the end of the connection string, separated by :code:`/`. You can also specify the initial warehouse and role for the session as a parameter string at the end of the connection string:
 
     .. code-block:: python