Mote detailed documentation

[JaGeo]

I think the documentation could profit from mire details when it comes to the forcefields.

We could introduce a subpage

[esoteric-ephemera]

• Guidance on ML forcefields for devs: https://materialsproject.github.io/atomate2/dev/forcefields.html
• Lightly expanded MLFF docs for users: https://materialsproject.github.io/atomate2/user/codes/forcefields.html

Let me know where you think these could be expanded more? Thinking maybe examples + more details about using the ASE makers

[JaGeo]

This is awesome, thanks! I like them a lot, will ask my group for further feedback!