docs: update dperecation notice in readme

Author: dpopp07

README.md

@@ -49,8 +49,8 @@ Node.js client library to use the Watson APIs.
 </details>
 
 ## ANNOUNCEMENTS!
-### Deprecating support for Node versions 6 and 8
-Support for Node versions **6** and **8** has been deprecated and will be officially dropped in the next major release, v5, which is expected to be in September, 2019. Version 6 reached end of life in April 2019 and Version 8 reaches end of life on 31 December 2019.
+### Supporting Node versions 10+
+The SDK will no longer be tested with Node versions 6 and 8. Support will be officially dropped in v5.
 
 ### Package Rename
 This package has been moved under the name `ibm-watson`. The package is still available at `watson-developer-cloud`, but that will no longer receive updates. Use `ibm-watson` to stay up to date.