feat(seo): add description and title tags (microsoft#11)

Author: arjunattam

src/index.html

@@ -1,5 +1,7 @@
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 <meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
+<title>Playwright</title>
+<meta name="description" content="Playwright is a cross-browser automation library for Chromium, Firefox and WebKit. Use the Playwright API to automate user interactions and test web applications.">
 <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🎭</text></svg>">