[conformal/btcec] cf69fb: Move test coverage badge to top of README.md.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcec
  Commit: cf69fbec0a4561073c26cb2e0826f732c7b8dd1b
      
https://github.com/conformal/btcec/commit/cf69fbec0a4561073c26cb2e0826f732c7b8dd1b
  Author: Dave Collins <da...@conformal.com>
  Date:   2014-08-10 (Sun, 10 Aug 2014)

  Changed paths:
    M README.md

  Log Message:
  -----------
  Move test coverage badge to top of README.md.