e030aae873
On the gate, we are limiting each maximum microversion for stable branches (Please see Id7ad136a4d79992e9df8d1aa463aff8fc58579ab as the reference). For doing that, we are checking each project maximum microversion for each release. This additional note will help us, and the format is the same as Nova's rest_api_version_history.rst. In addition, this patch fixes some weird rst format. Change-Id: I0f802fb4af5ded6186ab81ad28804b84824716e3