add share section (#1651)
* add share section
cc @gary149 maybe if you have links to assets to include on github/websites
* Update docs/hub/model-release-checklist.md
Co-authored-by: Pedro Cuenca <pedro@huggingface.co>
* Update model-release-checklist.md
---------
Co-authored-by: Victor Muštar <victor.mustar@gmail.com>
Co-authored-by: Pedro Cuenca <pedro@huggingface.co>
