Update rn-cli.config.js

local-cli/generator/templates/rn-cli.config.js

@@ -8,7 +8,9 @@ var config = {
   },
 
   getAssetRoots() {
-    // speficy where to look for assets
+    // Speficy where to look for assets that are referenced using `image!<image_name>`.
+    // Asset directories for images referenced using `./<image.extension>` don't require 
+    // any entry in here.
     return [];
   },