transformers

4a602492 - doc: add info about wav2vec2 bert in older wav2vec2 models. (#31120)

doc: add info about wav2vec2 bert in older wav2vec2 models. (#31120) * doc: add info about wav2vec2 bert in older wav2vec2 models. * apply suggestions from review. * forward contrib credits from review --------- Co-authored-by: Sanchit Gandhi <sanchit-gandhi@users.noreply.github.com>