Add usage docs

[CodyCBakerPhD]

With examples that are easy for a user to run without much work on their end (such as autogenerating empty files) to demonstrate 'at a glance' what the expected workflow, input, and output of this package involves

[CodyCBakerPhD]

@TheChymera Any progress on this?

[TheChymera]

@CodyCBakerPhD I don't think it's close to mature enough yet, still trying to get the conversion to work with my neuroconv script, this code might change once I use it more after that bit is done.