message: Change link gh-pages
diff: `harp.gl` is an _experimental and work in progress_ open-source 3D map rendering engine.
  -### [Documentation](https://heremaps.github.io/harp.gl/doc) - [Examples](https://heremaps.github.io/harp.gl/examples)
  +### [Documentation](https://heremaps.github.io/harp.gl/)
  ## Overview
  