message: docs: update changelog and all contrib sections
diff: @@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  ## Changes
  - [#974](https://github.com/ClementTsang/bottom/pull/974): Hide battery duration section if the value is unknown. Also update shortened text.
  +- [#975](https://github.com/ClementTsang/bottom/pull/975): Automatically hide the battery widget if no batteries are found.
  ## Other
  