fix README transposition of h1 and h2
fix README transposition of h1 and h2

h1s and h2s were transposed in the readme and is now fixed.

Fixes #4

salcode/bootstra.386-genesis,salcode/bootstrap-genesis,salcode/bootstrap-genesis,salcode/bootstra.386-genesis,bryanwillis/bootstrap-genesis,bryanwillis/bootstrap-genesis,michaelcarwile/bootstrap-genesis,michaelcarwile/bootstrap-genesis,salcode/bootstrap-genesis,michaelcarwile/bootstrap-genesis,bryanwillis/bootstrap-genesis