Repo cleanup/organization

[brownsarahm]

top level folder

• LLM evaluator files should be in a sub folder, with a readme #35

README

• correct fairness metrics section to group by independence/sufficiency/separation #33
• move "instructions for running" to be the first ## section have an intro before the bullets or remove if info is in other replaces #30
• add more detail on definiton of baseline #29
• change "roles" heading to be more clear and
• Indlude more specific model versions

fairnessBench folder

• fairness Bench folder should have a readme that outlines the different files/folders #34

agents folder

• add a readme to agents folder with description of current agent(s)
• write requirements of a new agent into agent readme
• move tool files to agent folder and update calls to make it work

benchmarks folder

• rename to tasks
• create a readme to benchmarks folder with description of naming scheme, datasets and metrics (removed from main readme) #31
• add section on creating a new task in the benchmark folder readme #32