fix docstring for array_to_raster method

[coveralls]

Pull Request Test Coverage Report for Build 412

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 83.081%

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Totals
Change from base Build 409:	0.0%
Covered Lines:	658
Relevant Lines:	792

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💛 - Coveralls

[brycefrank]

Thank you! If you would like to get more involved with maintenance updates like this I can be contacted here:

bfrank70@gmail.com