Add dummy redis URL to docs build config

docs/changelog.rst

@@ -1,6 +1,7 @@
 Changelog
 =========
 
+* :release:`0.2.0 <2020-04-10>`
 * :support:`-` add Docker setup for lightweight local testing
 * :support:`-` update Vagrant setup to libvirt and Debian Buster
 * :support:`-` move mysqltasks to top level to keep the task names when

docs/conf.py

@@ -25,6 +25,7 @@ os.environ["GVAMYSQL_DBADMIN_HOST"] = "localhost"
 os.environ["GVAMYSQL_DBADMIN_PORT"] = "3306"
 os.environ["GVAMYSQL_DBADMIN_USER"] = "gvamysql"
 os.environ["GVAMYSQL_DBADMIN_PASSWORD"] = "sUp3rS3cr3t"
+os.environ['GVAMYSQL_RESULTS_REDIS_URL'] = 'redis://'
 
 
 # -- General configuration -----------------------------------------------------