add favicon

index.html

@@ -5,6 +5,10 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Zeppo — The Greatest Yinglet Alive</title>
   <link rel="stylesheet" href="style.css">
+  <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
+  <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
+  <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
+  <link rel="manifest" href="/site.webmanifest">
 </head>
 <body>
   <header>

site.webmanifest

@@ -0,0 +1 @@
+{"name":"","short_name":"","icons":[{"src":"/android-chrome-192x192.png","sizes":"192x192","type":"image/png"},{"src":"/android-chrome-512x512.png","sizes":"512x512","type":"image/png"}],"theme_color":"#ffffff","background_color":"#ffffff","display":"standalone"}