Update README

Author: pinanks

README.md

@@ -46,12 +46,14 @@ smartui config create .smartui.json
 ```
 
 ## Step 3: Execute tests
-Run the following command to run tests on your Storybook stories. Provide your storybook url, build name and config file (Default config used if no config file provided)
+Run the following command to run visual regression tests on your Storybook components.
 
 ```bash
-smartui storybook http://localhost:6006 --buildname Build1 --config .smartui.json
+smartui storybook http://localhost:6006 --config .smartui.json
 ```
 
+You can also provide path to the storybook-static directory instead of the local Storybook URL. Use `--help` for more information on usage.
+
 # About LambdaTest
 
 [LambdaTest](https://www.lambdatest.com/) is a cloud based selenium grid infrastructure that can help you run automated cross browser compatibility tests on 2000+ different browser and operating system environments. LambdaTest supports all programming languages and frameworks that are supported with Selenium, and have easy integrations with all popular CI/CD platforms. It's a perfect solution to bring your [selenium automation testing](https://www.lambdatest.com/selenium-automation) to cloud based infrastructure that not only helps you increase your test coverage over multiple desktop and mobile browsers, but also allows you to cut down your test execution time by running tests on parallel.