message: Add warning regarding semicolons to `README`
diff: @@ -56,6 +56,8 @@ default values otherwise. For example:
  cargo run --release -- validator resources/local/config.toml -C=consensus.secret_key_path=secret_keys/node-1.pem
  ```
  +Beware that no semicolons (`;`) can be passed in any string on the command-line, as these serve as top-level argument separators when passing arguments via environment variables.
  +
  Note that `network.known_addresses` must refer to public listening addresses of one or more
  currently-running nodes. If the node cannot connect to any of these addresses, it will panic. The
  node _can_ be run with this referring to its own address, but it will be equivalent to specifying an
  