add note about what dnatools is actually doing.
add note about what dnatools is actually doing.

brentp/bio-playground,brentp/bio-playground,shashidhar22/bio-playground,shashidhar22/bio-playground,brentp/bio-playground,brentp/bio-playground,shashidhar22/bio-playground,shashidhar22/bio-playground,shashidhar22/bio-playground,shashidhar22/bio-playground,brentp/bio-playground,brentp/bio-playground