docs: manifest for liquidjs.com

docs/source/manifest.json

@@ -0,0 +1,30 @@
+{
+  "short_name": "LiquidJS",
+  "name": "LiquidJS",
+  "icons": [
+    {
+      "src": "/icon/apple-touch-icon-57x57.png",
+      "type": "image/png",
+      "sizes": "57x57"
+    },
+    {
+      "src": "/icon/favicon-96x96.png",
+      "type": "image/png",
+      "sizes": "96x96"
+    },
+    {
+      "src": "/icon/favicon-196x196.png",
+      "type": "image/png",
+      "sizes": "196x196"
+    },
+    {
+      "src": "/icon/apple-touch-icon.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": "/",
+  "display": "standalone",
+  "theme_color": "#0f83ce",
+  "background_color": "#0f83ce"
+}

docs/themes/navy/layout/partial/head.swig

@@ -4,6 +4,7 @@
   <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <link rel="dns-prefetch" href="https://cdn.jsdelivr.net/">
+  <link rel="manifest" href="/manifest.json">
   <!-- Canonical links -->
   <link rel="canonical" href="{{ url }}">
   <!-- Alternative links -->