Hint the existence of the manpage in README.md
Hint the existence of the manpage in README.md

circonus-labs/nad,keithf4/nad,circonus-labs/nad,HeinrichHartmann/nad,maier/nad,circonus-labs/nad,keithf4/nad,hjhart/nad,circonus-labs/nad,hjhart/nad,HeinrichHartmann/nad,hjhart/nad,maier/nad,maier/nad,maier/nad,circonus-labs/nad,hjhart/nad,hjhart/nad,keithf4/nad,maier/nad,HeinrichHartmann/nad,HeinrichHartmann/nad,HeinrichHartmann/nad,keithf4/nad,HeinrichHartmann/nad,maier/nad,keithf4/nad,circonus-labs/nad