Remove coursera links for nand2tetris

[kevintprivett]

It does not look like we will find alternative lecture videos for nand2tetris. The main website is complete enough to learn the material necessary (lecture slides, textbook for Part 1, all project info).

I think serious thought should be given to taking it down compared to something else like CS:APP, but that's a discussion for another day.

Remove Coursera Links for nand2tetris on README.
Combined part 1 and part 2 to just be the main website link.

[SeanbReyes]

So yeah, as someone who has been taking both courses simultaneously, I think nand2tetris should not be taken down and CS:APP should absolutely be included. I currently don’t know if that would be a possibility because it is a commercial book, but anyways, they complement each other very well. Although they have overlaps in knowledge, each one teaches things from a different perspective.

[kevintprivett]

So yeah, as someone who has been taking both courses simultaneously, I think nand2tetris should not be taken down and CS:APP should absolutely be included. I currently don’t know if that would be a possibility because it is a commercial book, but anyways, they complement each other very well. Although they have overlaps in knowledge, each one teaches things from a different perspective.

I'd prefer to have this discussion in an RFC. This PR is only meant to remove the link to coursera.

That being said, nand2tetris and CS:APP seems redundant to me. I'd love to keep nand2tetris but there's just too much missing now without a textbook in part 2 and no lectures.

Regarding CS:APP, there are full lectures available in an archived course page and they tie in well with publicly available course projects. The textbook being non-free is annoying but in line with many courses we suggest that only have video lectures and problem sets along with a non-free textbook recommendation.