How to report a bug on Apple web site?

This article http://support.apple.com/kb/ht1353 lists iPod models and states that there are only 32 and 64 GB models of iPod touch 5-th generation 2012-10. However, this apple web site page http://store.apple.com/us/browse/home/shop_ipod/family/ipod_touch_16gb presents a 16 GB iPod touch, also 5-th generation. One of the pages must be incorrect, but how can I let Apple know about that?