feat: activate link to guide > mobile

Author: naokie

src/.vuepress/config.js

@@ -98,7 +98,7 @@ const sidebar = {
         '/guide/single-file-component',
         '/guide/testing',
         '/guide/typescript-support',
-        // '/guide/mobile',
+        '/guide/mobile',
         // '/guide/tooling/deployment'
       ]
     },