Add changelog for 1.3.1

Author: JonathanHuot

HISTORY.rst

@@ -1,11 +1,16 @@
 History
 -------
 
-UNRELEASED
-++++++++++
+v1.3.1 (21 January 2022)
+++++++++++++++++++++++++
 
 - Add initial support for OAuth Mutual TLS (draft-ietf-oauth-mtls)
-- Removed outdated LinkedIn Compliance Fixes
+- Add eBay compliance fix
+- Add Spotify OAuth 2 Tutorial
+- Add support for python 3.8, 3.9
+- Fixed LinkedIn Compliance Fixes
+- Fixed ReadTheDocs Documentation and sphinx errors
+- Moved pipeline to GitHub Actions
 
 v1.3.0 (6 November 2019)
 ++++++++++++++++++++++++

requests_oauthlib/__init__.py

@@ -5,7 +5,7 @@
 from .oauth2_auth import OAuth2
 from .oauth2_session import OAuth2Session, TokenUpdated
 
-__version__ = "1.3.0"
+__version__ = "1.3.1"
 
 import requests