Clarify bad Washington filenames
Clarify bad Washington filenames

Add comment specifying that the CSVs are missing and the Excel
files are hard to deal with.  Order files by election, in
ascending order, for easier future review.

Addresses https://github.com/openelections/core/issues/149

openelections/openelections-core,openelections/openelections-core,cathydeng/openelections-core,datamade/openelections-core,datamade/openelections-core,cathydeng/openelections-core