Release oxford (#47)

* update readthedocs
* update release notes

.readthedocs.yml

@@ -0,0 +1,24 @@
+# .readthedocs.yml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+  builder: html
+  configuration: docs/source/conf.py
+
+# Optionally build your docs in additional formats such as PDF and ePub
+formats: all
+
+# Optionally set the version of Python and requirements required to build your docs
+python:
+    version: 3.7
+
+conda:
+  environment: environment.yml
+
+build:
+    image: latest

docs/source/release_notes.rst

@@ -9,8 +9,36 @@ Release Notes
    :depth: 2
    :backlinks: none
 
+
+Oxford (April 2020, v0.9.0)
+===========================
+
+Highlighted Changes:
+
+* Keycloak support in Twitcher and Phoenix.
+
+Released Tools:
+
+* Twitcher WPS Proxy: `0.6.0 <https://github.com/bird-house/twitcher/releases/tag/v0.6.0>`_
+* Ansible Playbook for PyWPS `0.3.0 <https://github.com/bird-house/ansible-wps-playbook/releases/tag/v0.3.0>`_
+* Ansible Playbook for Twitcher `0.1.0 <https://github.com/bird-house/ansible-twitcher-playbook/releases/tag/v0.1.0>`_
+* Cookiecutter Template for PyWPS `0.4.2 <https://github.com/bird-house/cookiecutter-birdhouse/releases/tag/v0.4.2>`_
+* Birdy WPS Client: `0.6.9 <https://github.com/bird-house/birdy/releases/tag/v0.6.9>`_
+
+Released WPS services:
+
+* Emu WPS: `0.11.1 <https://github.com/bird-house/emu/releases/tag/v0.11.1>`_
+* FlyingPigeon WPS: `1.5.1 <https://github.com/bird-house/flyingpigeon/releases/tag/v1.5.1>`_
+* Finch WPS: `0.5.1 <https://github.com/bird-house/finch/releases/tag/v0.5.1>`_
+* Hummingbird WPS: `0.9.0 <https://github.com/bird-house/hummingbird/releases/tag/v0.9.0>`_
+
+Maintained Apps with Buildout:
+
+* Phoenix Web App: `0.11.0 <https://github.com/bird-house/pyramid-phoenix/releases/tag/v0.11.0>`_
+
+
 Bucharest (October 2019, v0.8.0)
-==================================
+================================
 
 PyWPS was present at `FOSS4G 2019 in Bucharest <https://2019.foss4g.org/>`_.