wav2vec_u_readme (#1888)
wav2vec_u_readme (#1888)

Summary:
initial wav2vec-U readme
to be updated

Pull Request resolved: https://github.com/fairinternal/fairseq-py/pull/1888

Reviewed By: michaelauli

Differential Revision: D28595427

Pulled By: alexeib

fbshipit-source-id: 8e1baca8a367f9b38a66e58489ad127341214f58

pytorch/fairseq,pytorch/fairseq,pytorch/fairseq