Add note in main.js about the alias for importing the standalone build

template/src/main.js

@@ -1,3 +1,9 @@
+{{#if_eq build "standalone"}}
+// The following line loads the standalone build of Vue instead of the runtime-only build,
+// so you don't have to do: import Vue from 'vue/dist/vue'
+// (also, loading Vue standalone this way breaks vueify, so don't do it)
+// This is done with the traonsform "aliasify". For the config, see package.json
+{{/if_eq}}
 import Vue from 'vue'
 import App from './App.vue'