README updates from problem-specifications#929

Merged

petertseng merged 2 commits intoexercism:masterfrom petertseng:readmes

Nov 15, 2020

+21-13

Commits on Nov 14, 2020

Style: Fix whitespace issues

ee7
authored and
petertseng
committed
Update nucleotide-count description

cmcaine
authored and
petertseng
committed