Updated model card for mbart and mbart50 (#37619)
* new card for mbart and mbart50
* removed comment BADGES
* Update mBart overview
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
* fix typo (MBart to mBart)
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
* maybe fix typo
* update typo and combine notes
* changed notes
* changed the example sentence
* fixed grammatical error and removed some lines from notes example
* missed one word
* removed documentation resources and added some lines of example code back in notes.
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Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
