Add Preview Image Meta

index.html

@@ -6,6 +6,10 @@
 		<meta charset="utf-8" />
 		<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no" />
 		<meta name="description" content="Tracking bitcoin only projects." />
+		<meta property="og:image" content="https://www.bitcoin-only.com/assets/images/share.png" />
+		<meta property="og:image:type" content="image/png">
+    <meta property="og:image:width" content="800">
+    <meta property="og:image:height" content="418">
 		<link href="https://fonts.googleapis.com/css?family=Quicksand:400,400italic,700,700italic,900,900italic" rel="stylesheet" type="text/css" />
 		<link rel="icon" type="image/png" href="assets/images/favicon.png" />
 		<link rel="apple-touch-icon" href="assets/images/apple-touch-icon.png" />