Update README.md

Author: kn-neeraj

README.md

@@ -101,6 +101,8 @@ Open `BrowserStackAndroidLocal.java` file in the `android` directory or `Browser
 
 - Set the device and OS version
 
+- Ensure that `browserstack.local` capability is set to `true`. Within the test script, there is code snippet that automatically establishes Local Testing connection to BrowserStack servers using Java binding for BrowserStack Local. 
+
 - If you have uploaded your own app update the test case
 
 - To run the test, use the following command in the base directory :