crappy Sharpie redactions

[jeremybmerrill]

another category of crappy redactions (that I didn't see noted elsewhere) are crappy see-thru uses of Sharpie, e.g. https://storage.courtlistener.com/recap/gov.uscourts.txnd.338502/gov.uscourts.txnd.338502.242.1_1.pdf where maybe 33% of the redactions are see-thru.

[mlissner]

Ugh, thanks.

[andGarc]

It seems to me that x-ray does not yet work on crappy sharpie redactions. Maybe consider adding a note about this to the README.