Update README.md (#4)

Author: n2parko

README.md

@@ -1,8 +1,8 @@
 # Analytics-Swift
 
-NOTE: This project is currently in the Pilot phase and is not supported yet by Segment.  We encourage you
-to try out this new library and provide feedback and requests via Github issues/PRs.  This will eventually 
-supplant our `analytics-ios` library.
+NOTE: This project is currently in the Pilot phase and is covered by Segment's [First Access & Beta Preview Terms](https://segment.com/legal/first-access-beta-preview/).  We encourage you
+to try out this new library. Please provide feedback via Github issues/PRs, and feel free to submit pull requests.  This library will eventually 
+supplant our `analytics-ios` library, but customers should not use this library for production applications during our Pilot phase. 
 
 The hassle-free way to add Segment analytics to your Swift app (iOS/tvOS/watchOS/macOS/Linux).