Add comments for imports that support dotenv

We have set up exact match resolve aliases to support different
dotenv build customizations. Added comments to the imports
that should not be changed.

Signed-off-by: Yoshie Muranaka <yoshiemuranaka@gmail.com>
Change-Id: Ie371b42ec35f876ccb89ef976f7126d5234a1b47
diff --git a/src/router/index.js b/src/router/index.js
index 6db80b7..ce792cb 100644
--- a/src/router/index.js
+++ b/src/router/index.js
@@ -1,7 +1,11 @@
 import Vue from 'vue';
 import VueRouter from 'vue-router';
-import store from '../store';
+
+//Do not change store or routes import.
+//Exact match alias set to support
+//dotenv customizations.
 import routes from './routes';
+import store from '../store';
 
 Vue.use(VueRouter);