Add more information to docs about modifying input settings

[Andrew-S-Rosen]

Addresses most of #11.

• Clarified warning about MP settings with Atomate2.
• Added a section to the docs about changing k-points and POTCARs.
• Added a section to the docs about using a new config_dict.
  • Question: When I pass config_dict=user_config_dict to StaticSetGenerator, it doesn't seem to appear when I do as_keys(). Passing a config_dict to a VaspInputSetGenerator directly gives the expected behavior. Am I misunderstanding how the kwargs are passed through in StaticSetGenerator? If there's a simpler way to achieve what I did with the config_dict, let me know!
• Corrected the structure in the FireWorks example

Note: I didn't rebuild the docs because it failed when I tried to do so. Didn't have time to dig into why.

[utf]

Hi @arosen93,

Question: When I pass config_dict=user_config_dict to StaticSetGenerator, it doesn't seem to appear when I do as_keys(). Passing a config_dict to a VaspInputSetGenerator directly gives the expected behavior. Am I misunderstanding how the kwargs are passed through in StaticSetGenerator? If there's a simpler way to achieve what I did with the config_dict, let me know!

This is a known bug that I fixed in the electron-phonon branch, sorry about that!

Thanks very much for this PR!

[utf]

You might also like to know that I've updated the powerups so that you can apply them to Maker's as well as Flows or Jobs (on the electron-phonon branch).

[Andrew-S-Rosen]

Ah great, good to know!