IPv6 guide

app.ts

@@ -66,6 +66,12 @@ router.get("/", async (ctx: Context) => {
   ctx.response.type = "text/html";
 });
 
+router.get("/guide", async (ctx: Context) => {
+  const html = await eta.render("ipv6-guide", {});
+  ctx.response.body = html;
+  ctx.response.type = "text/html";
+});
+
 app.use(router.routes());
 app.use(router.allowedMethods());