ADD: Adding new example for working with ARM QC and Xarray Transforma…

[AdamTheisen]

…tions. Updating one example to follow ds convention, and fixing warn message for armfiles

• Documentation reflects changes
• PEP8 Standards or use of linter
• Xarray Dataset or DataArray variable naming follows 'ds' or 'da' naming

[mgrover1]

One minor comment - otherwise, this looks great!

[AdamTheisen]

@kenkehoe just wanted to ping you on this example. Was something like this what you were thinking?

[AdamTheisen]

@mgrover1 does this look good now?

[mgrover1]

Thanks for making the changes here!

[kenkehoe]

@AdamTheisen overall I think it looks good. I didn't actually run the code so I don't know what the plot looks like. Does the updated QC work?

[AdamTheisen]

@kenkehoe the updated qc will not work which is what I try to note in the example and why users should filter their data appropriately ahead of any transformation

[kenkehoe]

@AdamTheisen OK sounds good. Thanks for the example.