Merge pull request #673 from watson-developer-cloud/mediumTaj-patch-2

Update README.md

Author: mediumTaj

README.md

@@ -28,7 +28,7 @@ Use this SDK to build Watson-powered applications in Unity.
 
 </details>
 
-## ANNOUNCEMENTS!
+## Announcements
 ### Updating endpoint URLs from watsonplatform.net
 Watson API endpoint URLs at watsonplatform.net are changing and will not work after 26 May 2021. Update your calls to use the newer endpoint URLs. For more information, see https://cloud.ibm.com/docs/watson?topic=watson-endpoint-change.