[conformal/btcd] fcdddd: Use a more specific license adjective in README.md...

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcd
  Commit: fcdddd499f3713a2172dc78fe106ca90b5071fd3
      
https://github.com/conformal/btcd/commit/fcdddd499f3713a2172dc78fe106ca90b5071fd3
  Author: Dave Collins <da...@conformal.com>
  Date:   2014-01-15 (Wed, 15 Jan 2014)

  Changed paths:
    M README.md

  Log Message:
  -----------
  Use a more specific license adjective in README.md.

This was proposed by @apotheon.