Comment update

Author: lokesh

src/js/lightbox.js

@@ -304,7 +304,8 @@
           maxImageHeight = self.options.maxHeight;
         }
 
-        // Is there a fitting issue?
+        // Is the current image's width or height is greater than the maxImageWidth or maxImageHeight
+        // option than we need to size down while maintaining the aspect ratio.
         if ((preloader.width > maxImageWidth) || (preloader.height > maxImageHeight)) {
           if ((preloader.width / maxImageWidth) > (preloader.height / maxImageHeight)) {
             imageWidth  = maxImageWidth;