message: Added a link to the Development tracking issue to the readme.
diff: @@ -28,7 +28,7 @@ Further Information
  * [FAQ](docs/faq.md)
  * [How to Create Themes](docs/theming.md)
  * [Development and Contributing](docs/development.md)
  -
  +* [Current Development Roadmap](https://github.com/sedwards2009/extraterm/issues/30)
  Status
  ------
  