message: Update readme-facebook.md
diff: @@ -4,7 +4,7 @@ Botkit is designed to ease the process of designing and running useful, creative
  Botkit features a comprehensive set of tools
  -to deal with [Facebooks's Messenger platform](https://developers.facebook.com/docs/messenger-platform/implementation), and allows
  +to deal with [Facebooks's Messenger platform](https://developers.facebook.com/docs/messenger-platform/implementation) as well as [Facebook @Workplace](https://facebook.com/workplace), and allows
  developers to build interactive bots and applications that send and receive messages just like real humans. Facebook bots can be connected to Facebook Pages, and can be triggered using a variety of [useful web plugins](https://developers.facebook.com/docs/messenger-platform/plugin-reference).
  This document covers the Facebook-specific implementation details only. [Start here](readme.md) if you want to learn about to develop with Botkit.
  