GitLab

* first batch of structure improvements for model_docs

* second batch of structure improvements for model_docs

* more structure improvements for model_docs

* more structure improvements for model_docs

* structure improvements for cv model_docs

* more structural refactoring

* addressed feedback about image processors

* Rename index.mdx to index.md

* With saved modifs

* Address review comment

* Treat all files

* .mdx -> .md

* Remove special char

* Update utils/tests_fetcher.py
Co-authored-by: Lysandre Debut <lysandre.debut@reseau.eseo.fr>

---------
Co-authored-by: Lysandre Debut <lysandre.debut@reseau.eseo.fr>

fix(docs): task guide links in model docs

* added resources: links to task guides that support these models

* minor polishing

* conflict resolved

* link fix

* Update docs/source/en/model_doc/vision-encoder-decoder.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

---------
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* add_ernie

* remove Tokenizer in ernie

* polish code

* format code style

* polish code

* fix style

* update doc

* make fix-copies

* change model name

* change model name

* fix dependency

* add more copied from

* rename ErnieLMHeadModel to ErnieForCausalLM
do not expose ErnieLayer
update doc

* fix

* make style

* polish code

* polish code

* fix

* fix

* fix

* fix

* fix

* final fix
Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>