2020 03 13 node md (#1229)
2020 03 13 node md (#1229)

* Implement example of starting a neutrino node and example of adding a callback to node.md

Fix port number

* Clean up some names in the example

* Make sure we get the correct bitcoind binary with neutrino p2p support in the example
bitcoin-s/bitcoin-s,bitcoin-s/bitcoin-s,bitcoin-s/bitcoin-s