fixed where the image in slide 3 is located. added more information about normalization.
fixed where the image in slide 3 is located. added more information about normalization.

ldm5180/hammerhead,ldm5180/hammerhead,ldm5180/hammerhead,ldm5180/hammerhead,ldm5180/hammerhead,ldm5180/hammerhead,ldm5180/hammerhead