This section provides an overview of what mqtt is, and why a developer might want to use it.
It should also mention any large subjects within mqtt, and link out to the related topics. Since the Documentation for mqtt is new, you may need to create initial versions of those related topics.
It is quite useful for connections with remote locations where a small code footprint is required and/or network bandwidth is at a premium.
There are many different Brokers and Clients that implement the MQTT protocol.
News on MQTT specifications can be found at mqtt.org.
MQTT v3.1.1 is an Oasis standard available here