message: Fix typo "wit" -> "with"
diff: @@ -56,7 +56,7 @@ Theory
  entire pyramid.
  - The procedure above was useful to downsample an image. What if we want to make it bigger?:
  columns filled with zeros (\f$0 \f$)
  - - First, upsize the image to twice the original in each dimension, wit the new even rows and
  + - First, upsize the image to twice the original in each dimension, with the new even rows and
  - Perform a convolution with the same kernel shown above (multiplied by 4) to approximate the
  values of the "missing pixels"
  - These two procedures (downsampling and upsampling as explained above) are implemented by the
  