Create README.md

Author: kevinbstack

playwright-test/README.md

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+# Testing with playwright-browserstack in Test Runner
+
+[Playwright](https://playwright.dev/dotnet/) Integration with BrowserStack.
+
+![BrowserStack Logo](https://d98b8t1nnulk5.cloudfront.net/production/images/layout/logo-header.png?1469004780)
+
+## Setup
+
+* Clone the repo and run `cd playwright-test`
+* Run `npm install`
+
+## Running your tests
+
+- To run a single test, run `npm test`
+
+  ### Run sample test on privately hosted websites
+
+    **Using Command-line Interface**
+    1. You have to download the BrowserStack Local binary from the links below (depending on your environment):
+        * [OS X (10.7 and above)](https://www.browserstack.com/browserstack-local/BrowserStackLocal-darwin-x64.zip)
+        * [Linux 32-bit](https://www.browserstack.com/browserstack-local/BrowserStackLocal-linux-ia32.zip)
+        * [Linux 64-bit](https://www.browserstack.com/browserstack-local/BrowserStackLocal-linux-x64.zip)
+        * [Windows (XP and above)](https://www.browserstack.com/browserstack-local/BrowserStackLocal-win32.zip)
+    2. Once you have downloaded and unzipped the file, you can initiate the binary by running the command: `./BrowserStackLocal --key YOUR_ACCESS_KEY`
+    3. Once you see the terminal say "[SUCCESS]" You can now access your local server(s) in our remote browser”, your local testing connection is considered established.
+    4. You can then run the sample Local test using `npm run test:local`
+
+Understand how many parallel sessions you need by using our [Parallel Test Calculator](https://www.browserstack.com/automate/parallel-calculator?ref=github)
+
+
+## Notes
+* You can view your test results on the [BrowserStack Automate dashboard](https://www.browserstack.com/automate)
+
+## Additional Resources
+* [Documentation for writing Automate test scripts with BrowserStack](https://www.browserstack.com/docs/automate/playwright)