message: doc: Update CHANGELOG for v4.0.1
diff: +# 4.0.1 (2021-05-31)
  +
  +## Features
  +
  +- Added hardware support:
  + - Lovenuts brand toys
  + - Svakom Neo vibrators
  + - Je Jour Nuo and Dua
  +
  +## Bugfixes
  +
  +- Fixed toy addressing when using Lovense Connect Service
  +- Fixed issue with websocket writer stream not closing correctly when websocket is dropped.
  +
  # 4.0.0 (2021-05-02)
  ## Features
  