GitLab

* [Issue template] need to update/extend who to tag

1. need to update who to tag for `tensorflow`
2. also requesting to add someone to tag for models hub issues - perhaps separate sub-entries for UI and code - e.g. I don't know who to tag for broken models: https://github.com/huggingface/transformers/issues/10726

Thanks.

* model hub instructions

* s/jplu/LysandreJik/