Update readme.md

Author: youchenlee

readme.md

@@ -43,7 +43,7 @@ or
 
         $files = [];
         foreach (\Input::file('images') as $file) {
-            $files += $entry->save('images');
+            $files []= $entry->save('images');
         }
 
 * Custimize your upload file name
@@ -88,4 +88,4 @@ you can use url() method to get it
 * Get Mime Type
 
         \Storage::mimeType($entry->fullpath('wfj412.jpg'));
-    
+