message: Add release date to 0.17.5
diff: @@ -145,7 +145,7 @@ is based on [Keep a Changelog](https://keepachangelog.com).
  constructor overload. This (explicit) overload now exists and the conversion
  should work as expected.
  -## [0.17.5] - Unreleased
  +## [0.17.5] - 2020-05-13
  ### Added
  @@ -464,7 +464,7 @@ is based on [Keep a Changelog](https://keepachangelog.com).
  - Configuring colored terminal output should now print colored output.
  [0.18.0]: https://github.com/actor-framework/actor-framework/compare/0.17.3...master
  -[0.17.5]: https://github.com/actor-framework/actor-framework/compare/0.17.4...release/0.17
  +[0.17.5]: https://github.com/actor-framework/actor-framework/releases/0.17.5
  [0.17.4]: https://github.com/actor-framework/actor-framework/releases/0.17.4
  [0.17.3]: https://github.com/actor-framework/actor-framework/releases/0.17.3
  [0.17.2]: https://github.com/actor-framework/actor-framework/releases/0.17.2
  