PM-1391 updated configuration guide to reflect how properties can be specified as environment variables.
PM-1391 updated configuration guide to reflect how properties can be specified as environment variables.

pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus