message: document a few additional commands to initialize a network and download its blocks
diff: > ***STILL IN DEVELOPMENT***
  -***
  # Ariadne summary
  `ariadne` is a command line interface to perform actions on a `Cardano`
  @@ -16,10 +15,37 @@ compatible wallet.
  # Usage
  -```shell
  +Make a wallet and retrieve its addresses.
  +
  +```sh-session
  $ ariadne wallet generate
  +# creates ~/.ariadne/wallet.yml
  +
  $ ariadne wallet address "Main" 0 1 2
  jYTLseJK1m2GQZeYxYKkiea3Phfqt9TUEUCjTDezYSQbd6sY5VaNFr3SKRhD
  jYTLseJK1m2RmsXD44EZVe2EqGtBnQyFnPwjS2Q36c3iLwWCPGmAVWKR9ufE
  jYTLseJK1m2eYuy16w7tjPNqtVdAaQ5bnb4Cyya2YH9AqJoNPQ1VLgE4MaXL
  ```
  +
  +Make a network configuration (from a template).
  +
  +```sh-session
  +$ ariadne network new foo --template testnet
  +# creates a few files under ~/.ariadne/networks/foo, using the testnet template
  +# see `ariadne network new --help` for more info.
  +```
  +
  +Download the blockchain (takes awhile).
  +
  +```sh-session
  +$ ariadne network sync foo
  +HANDSHAKE OK
  +Configured genesis : b36..
  +Configured genesis-1 : c6a..
  +Network TIP is : fbb..
  +Network TIP slotid : 47.14233
  +latest known epoch 0 hash=Some(HeaderHash(b36...))
  +downloading epoch 0 b36...
  +...
  +
  +```
  