Merge #17: Remove stale files

b9af24a Remove stale README (Tobin C. Harding)
aaae39a Remove build.sh script (Tobin C. Harding)

Pull request description:

  Remove the old build script and a stale README buried in the static site artifacts.

ACKs for top commit:
  apoelstra:
    Sure, utACK b9af24a

Tree-SHA512: 9c21f0f3ca34c56016ff546a5704ece20537b6b2961690118e93d6a57c676edba406218eef1a7fb95094ed3b5b3840984e3e5c705e561c8fdd9ef862af1d8f85

Author: tcharding