Update README.md

Testers Talk

Author: BakkappaN

README.md

@@ -1,4 +1,6 @@
 - Playwright with TypeScript Full Course Playlist - https://youtube.com/playlist?list=PLUeDIlio4THEXmQxNvKmdDxAVloGTHXMr&feature=shared
+  [![Watch the video](https://img.youtube.com/vi/788GvvcfwTY/hqdefault.jpg)](https://www.youtube.com/watch?v=788GvvcfwTY)
+  
 - Playwright with JavaScript UI Automation Full Course Playlist - https://bit.ly/playwright-tutorial-automation-testing
 
 - Playwright with JavaScript API Testing Crash Course Playlist - https://bit.ly/playwright-api-testing-tutorial