fixed error in instructions
fixed error in instructions

armchairlinguist/newrelic-ruby-kata,Dragoon013/newrelic-ruby-kata,jamesgoodhouse/newrelic-ruby-kata,jamesgoodhouse/newrelic-ruby-kata,armchairlinguist/newrelic-ruby-kata,newrelic/newrelic-ruby-kata,newrelic/newrelic-ruby-kata,elauervose/newrelic-ruby-kata,1337807/newrelic-ruby-kata,matt-otis/newrelic-ruby-kata,elauervose/newrelic-ruby-kata,Dragoon013/newrelic-ruby-kata,jamesgoodhouse/newrelic-ruby-kata,newrelic/newrelic-ruby-kata,BabaYaga64/NewRelicRubyKata,BabaYaga64/NewRelicRubyKata,matt-otis/newrelic-ruby-kata,newrelic/newrelic-ruby-kata,BabaYaga64/NewRelicRubyKata,matt-otis/newrelic-ruby-kata,1337807/newrelic-ruby-kata,Dragoon013/newrelic-ruby-kata,elauervose/newrelic-ruby-kata,armchairlinguist/newrelic-ruby-kata