added comment for w3c support

Author: innovater21

README.md

@@ -29,6 +29,10 @@ mvn clean install
 
 Getting Started with Appium tests in Java on BrowserStack couldn't be easier!
 
+For java-client 8.0.0 and above
+NOTE : Any BrowserStack capability passed outside bstack:options will not be honoured.
+[Browserstack Capability Builder](https://www.browserstack.com/app-automate/capabilities?tag=w3c)
+
 ### Run your first test :
 
 **1. Upload your Android or iOS App**