Update readme examples

[Crazytieguy]

The current readme example usage isn't very good / doesn't reflect intended use. @claude Please propose better examples: still short, base on functioning test cases and previous issue discussions

[claude]

View run

Progress

• Read issue Update readme examples #47
• Research existing test cases and previous issue discussions
• Draft improved README examples
• Run tests (all 150 pass)
• Push and create PR

Summary

Updated README examples in two areas:

Quick Start — replaced vague examples with concrete, test-case-grounded ones:

• Interactive mode now highlights Alt+Enter follow-ups
• Ralph example uses the TODO.md iteration pattern from the ralph_break test
• Orchestration comment references brief.md as the interface

Orchestration section — added a concrete brief.md example from the concurrent_workers test fixture so users see the expected format immediately.

PR: #48