add license title (#82)
add license title (#82)

background: https://github.com/btcsuite/btcd/pull/717
btcsuite/btcrpcclient,aakselrod/btcrpcclient,jrick/btcrpcclient,btcsuite/btcrpcclient,Roasbeef/btcd,dajohi/btcd,jrick/dcrd,tb00/btcd,aakselrod/btcrpcclient,ltcsuite/ltcd,jrick/btcd,Roasbeef/btcd,ltcsuite/ltcd,wallclockbuilder/btcd,btcsuite/btcd,wallclockbuilder/btcd,Stash-Crypto/btcd,davecgh/btcd,aakselrod/btcd,jrick/btcd,decred/dcrd,decred/dcrd,davecgh/btcd,aakselrod/btcd,jrick/btcd,ppcsuite/ppcd,btcsuite/btcd,tb00/btcd,ppcsuite/ppcd,dajohi/btcd,dajohi/btcd,jrick/dcrd,jrick/btcrpcclient,Stash-Crypto/btcd