[misc] Add some links to README.md (#1165)
[misc] Add some links to README.md (#1165)

* [skip ci] [misc] Add some links to README.md

* [skip ci] Update README.md

* [skip ci] Update README.md
yuanming-hu/taichi,yuanming-hu/taichi,yuanming-hu/taichi,yuanming-hu/taichi