docs(cli): clarify how to attach to an existing Chrome instance#1929

MukundaKatta wants to merge 3 commits intoChromeDevTools:mainChromeDevTools/chrome-devtools-mcp:mainfrom

MukundaKatta:codex/chrome-cli-autoconnect-clarifyMukundaKatta/chrome-devtools-mcp:codex/chrome-cli-autoconnect-clarifyCopy head branch name to clipboard