docs(puppeteer-web): a note about running inside extension (#3477)
docs(puppeteer-web): a note about running inside extension (#3477)

Fixes #3455

puppeteer/puppeteer,GoogleChrome/puppeteer,GoogleChrome/puppeteer,puppeteer/puppeteer,GoogleChrome/puppeteer,puppeteer/puppeteer,puppeteer/puppeteer