[DOCS] add recommendations requirements for models within `Tasks`

[davidberenstein1957]

Which page or section is this issue related to?

A lot of them.

What are you documenting, or what change are you making in the documentation?

Not all models are created equal. Perhaps it would be nice to create an overview of models that can be used in certain Tasks. We had the idea to do this

• as part of examples in the code
• perhaps a section with embedded LLM leaderboard spaces

https://huggingface.co/spaces/allenai/reward-bench https://huggingface.co/spaces/open-llm-leaderboard/open_llm_leaderboard