Cleaner inproved install documentation and slight style fixes
Cleaner inproved install documentation and slight style fixes

BeatsonLab-MicrobialGenomics/SeqFindR,BeatsonLab-MicrobialGenomics/SeqFindR,jling90/SeqFindR,nbenzakour/SeqFindR,jling90/SeqFindR,nbenzakour/SeqFindR