Check for N's

[j-salguero]

Demultiplex/Assignment-the-first/psuedocode.txt

Lines 17 to 19 in 3900f79

	if in set,
	check if quality score in line 4 for index1 is less than cutoff of 30
	if less than cutoff,

[j-salguero]

In class Leslie mentioned that it might be a good idea to explicitly check for N's to make our code run a bit faster. You can check for N's either before or after checking for the quality score cutoff, but I think that it'll be the most efficient to check for N's first