transformers

c2c0d9db - Improve encoder decoder model docs (#17815)

Improve encoder decoder model docs (#17815) * Copied all the changes from the last PR * added in documentation_tests.txt * Update docs/source/en/model_doc/encoder-decoder.mdx Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com> * Update docs/source/en/model_doc/encoder-decoder.mdx Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com> * Update docs/source/en/model_doc/encoder-decoder.mdx Co-authored-by: Yih-Dar <2521628+ydshieh@users.noreply.github.com> * Update docs/source/en/model_doc/encoder-decoder.mdx Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com> * Update docs/source/en/model_doc/encoder-decoder.mdx Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com> * Update docs/source/en/model_doc/encoder-decoder.mdx Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com> * Update docs/source/en/model_doc/encoder-decoder.mdx Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com> Co-authored-by: vishwaspai <vishwas.pai@emplay.net> Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com> Co-authored-by: Yih-Dar <2521628+ydshieh@users.noreply.github.com>