message: doc: Try centering logo with HTML
diff: </h3>
  </div>
  -![Buttplug Rust Project Logo](https://raw.githubusercontent.com/buttplugio/buttplug-rs/dev/buttplug/docs/buttplug_rust_docs.png)
  +<p align="center">
  + <img src="https://raw.githubusercontent.com/buttplugio/buttplug-rs/dev/buttplug/docs/buttplug_rust_docs.png">
  +</p>
  Rust implementation of the Buttplug Intimate Hardware Protocol,
  including implementations of the client and, at some point, server.
  