update framework appium repo links

Author: Tejas Shah

README.md

@@ -8,5 +8,5 @@ Do remember to switch the USERNAME and ACCESS_KEY with your own browserstack cre
 
 For frameworks integration with BrowserStack, refer to their individual repositories - 
 
-- [JUnit](https://github.com/browserstack/junit-browserstack)
-- [TestNg](https://github.com/browserstack/testng-browserstack)
+- [JUnit](https://github.com/browserstack/junit-appium-app-browserstack)
+- [TestNg](https://github.com/browserstack/testng-appium-app-browserstack)