Add HF.co for PRs / Issues regarding specific model checkpoints (#17485)

* Add HF.co for PRs / Issues regarding specific model checkpoints

* Update .github/ISSUE_TEMPLATE/config.yml
Co-authored-by: Julien Chaumond <julien@huggingface.co>
Co-authored-by: Julien Chaumond <julien@huggingface.co>

.github/ISSUE_TEMPLATE/config.yml

 blank_issues_enabled: true
 version: 2.1
 contact_links:
+  - name: Model checkpoints on the Hugging Face Hub
+    url: https://huggingface.co/models
+    about: Open a Pull request / Discussion related to a specific model checkpoint directly on the Hugging Face Hub
   - name: Website Related
     url: https://github.com/huggingface/hub-docs/issues
     about: Feature requests and bug reports related to the website