Add supplemental block pointer-based answers (#13)

[Fix] Fix backward typo in `mul_relu`

[Bugfix] correct Puzzle #10 when B0 > 1.

Enhance the debug instruction

Fix impl problem in Puzzle12(QuantMatmul)

fix softmax kernel brute force

fix puzzles 11

[Doc] Add instructions to fix a version issue

[Fix] Fix GPU exeuction for lambda function

first ver

minor

first commit