Cryptocurrency Advanced Example: generate-config

[Dave Bryson]

Using exonum master branch.

The README for manual setup seems to be out of date for some of the commands.

For example, running the following results in an error:

exonum-cryptocurrency-advanced generate-config example/common.toml example/pub_1.toml example/sec_1.toml --peer-address 127.0.0.1:6331 -c example/consensus_1.toml -s example/service_1.toml -n

This fails as it seems the args to generate-config have changed:

error: Found argument 'example/sec_1.toml' which wasn't expected, or isn't valid in this context

USAGE:
    exonum-cryptocurrency-advanced generate-config [FLAGS] [OPTIONS] <COMMON_CONFIG> <OUTPUT_DIR> --peer-address <PEER_ADDRESS>

Overall, not a big deal, just FYI

[ivan-ochc]

@davebryson , #1402