finished merged matrix implementation version of multi-head attention. TODO: kv cache.

Finish watching the video and more notes are recorded.

Finish the project. Some questions left to solve.

Finish dev.ipynb. Problem occurred when testing because of the wrong shape of tril. Guess it comes from torch.register_buffer.

Finish attention block with residual connection and batchNorm.

Finish self-attention demo

Rename as dev.ipynb for further dev.

Finish Bigram

Initial commit