[bot] Add Critic agent and built-in skills documentation (v1.0.17–v1.0.18)#50

DanWahlin wants to merge 1 commit intomaingithub/copilot-cli-for-beginners:mainfrom

update/copilot-cli-v1.0.17-v1.0.18-features-8f07ec399942a571github/copilot-cli-for-beginners:update/copilot-cli-v1.0.17-v1.0.18-features-8f07ec399942a571Copy head branch name to clipboard