[minor] Prep work for release: docs updated and polished and changelog updates.

Author: Jeff Beeland

HISTORY.rst

@@ -9,6 +9,7 @@ v3.0.37
 
 - Proper support added for unicode and utf-8 string paths given to upload methods, and a sane error is raised when an unusable string encoding is used.
 - Adds support for querying preferences from Shotgun via the new preferences_read method.
+- Under-the-hood changes to add support for direct to s3 uploads to Shotgun. This change should be transparent to users.
 
 v3.0.36
 =====================

docs/reference.rst

@@ -140,6 +140,7 @@ also some specialized convenience methods for accessing particular types of info
 .. automethod:: Shotgun.update_project_last_accessed
 .. automethod:: Shotgun.work_schedule_read
 .. automethod:: Shotgun.work_schedule_update
+.. automethod:: Shotgun.preferences_read
 
 Working With Files
 ==================

shotgun_api3/shotgun.py

@@ -3078,6 +3078,7 @@ def preferences_read(self, prefs=None):
         {
             "pref_name": "pref value"
         }
+
         :param list prefs: An optional list of preference names to return.
         :returns: Dictionary of preferences and their values.
         :rtype: dict