Update the ReadMe

Author: mdmintz

README.md

@@ -1,6 +1,10 @@
+<meta property="og:site_name" content="SeleniumBase">
 <meta property="og:title" content="SeleniumBase - Test Automation Framework" />
 <meta property="og:description" content="Create browser tests for web and mobile user interfaces." />
 <meta property="og:image" content="https://seleniumbase.io/img/sb_logo_7.png" />
+<meta property="og:locale" content="en_US">
+<meta property="og:url" content="https://seleniumbase.io/">
+<link rel="canonical" href="https://seleniumbase.io/">
 <link rel="icon" href="https://seleniumbase.io/img/logo3a.png" />
 <p align="center"><a href="https://github.com/seleniumbase/SeleniumBase/"><img src="https://seleniumbase.io/img/sb_logo_7.png" alt="SeleniumBase" height="156" /></a></p>