Add references for the transformation matrix

[ShreyanGoswami]

Hi,

Is it possible for you to add sources/documentation on how you got those transformation matrices. I am trying to do something similar in JavaScript and I have been looking at sources on how to do it.

One of them is https://ixora.io/projects/colorblindness/color-blindness-simulation-research/ and they have derived a different transformation matrix.

Thank you