docs: Add README and logging to match python package

- The readme is useful for us during development. This should be eventually removed and replaced with gitbook docs.

protocol-testing/src/main.rs

@@ -1,9 +1,9 @@
 mod config;
 mod rpc;
 mod test_runner;
+mod tycho_rpc;
 mod tycho_runner;
 mod utils;
-mod tycho_rpc;
 
 use clap::Parser;
 use tracing_subscriber::EnvFilter;