diff --git a/app/config.js b/app/config.js
index 1720a97..d981834 100644
--- a/app/config.js
+++ b/app/config.js
@@ -1,3 +1,5 @@
+// server 
+// app/config.js
 'use strict'
 
 const path = require('path')
diff --git a/app/socket.js b/app/socket.js
index 4eee673..ccd7fe9 100644
--- a/app/socket.js
+++ b/app/socket.js
@@ -1,3 +1,4 @@
+// server
 // app/socket.js
 'use strict'
 
diff --git a/index.js b/index.js
index d6b8d8a..cc0ac55 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,6 @@
 'use strict'
-
+// server
+// index.js
 /**
  * index.js
  *