INCIDENT 2020-04-25: STT down

The Speech-To-Text was down for some time, this was due to lack of free disk space on the host running the service. It is now back online after freeing up some disk space on the host.

The incident report is available here: https://docs.google.com/document/d/1iX7OLd2gerGnNACUxlq2VxPfDYLhYvkmiV-oWqwp-WY/edit?usp=sharing