message: Fix `examples` link in documentation
diff: //! [windowing shell]: https://github.com/hecrj/iced/tree/master/winit
  //! [`dodrio`]: https://github.com/fitzgen/dodrio
  //! [web runtime]: https://github.com/hecrj/iced/tree/master/web
  -//! [examples]: https://github.com/hecrj/iced/tree/0.1.0/examples
  +//! [examples]: https://github.com/hecrj/iced/tree/master/examples
  //! [repository]: https://github.com/hecrj/iced
  //!
  //! # Overview
  