chore(www): add vercel.json

Author: privatenumber

docs/vercel.json

@@ -0,0 +1,14 @@
+{
+	"cleanUrls": true,
+	"headers": [
+		{
+			"source": "/assets/(.*)",
+			"headers": [
+				{
+					"key": "Cache-Control",
+					"value": "max-age=31536000, immutable"
+				}
+			]
+		}
+	]
+}