message: added "Coming Soon" for 3.0 features
diff: @@ -49,6 +49,7 @@ Quickly and easily create PowerPoint presentations with a few simple JavaScript
  - [Need Help?](#need-help)
  - [Unimplemented Features](#unimplemented-features)
  - [Special Thanks](#special-thanks)
  +- [Coming Soon](#coming-soon)
  - [Support Us](#support-us)
  - [License](#license)
  @@ -235,6 +236,32 @@ These include:
  * Everyone who has [contributed](https://github.com/gitbrent/PptxGenJS/graphs/contributors), submitted an Issue, or created Pull Request.
  +**************************************************************************************************
  +# Coming Soon
  +
  +## [PptxGenJS 3.0 Preview](https://github.com/gitbrent/PptxGenJS/tree/version-3.0)
  +
  +The library is currently being rewritten in TypeScript for version 3.0 which will be completed by the end of 2019.
  +
  +Visit the "version-3.0" branch to try it out!
  +
  +New Features:
  +* Brand-new TypeScript/ES6 Class codebase eliminated dozens of bugs and greatly increased stability
  +* Code is logically separated into 10+ files, making pull requests and maintenance easier
  +* Completely rewritten Table AutoPaging and HTML-to-PowerPoint methods - faster and much more accurate
  +* Save/Export:
  + * Promise-based export methods - no more callbacks
  + * Two new methods (Write and WriteFile) will replace `save()`
  + * Supports all types of output methods: ArrayBuffer, Blob, etc.
  +
  +Outstanding Dev Items:
  +* Angular/React integration has not been completed as of yet (but it will be MUCH EASIER once it is finalized)
  +* TypeScript definitions are not up-to-date
  +* SlideNumbers do not work
  +* `save()` is still the only export method: `write()` & `writeFile()` are coming in September
  +* Correct MIME type for zip exports
  +* Other small items
  +
  **************************************************************************************************
  # Support Us
  