docs: update lastName state updater to use toUpperCase() instead of reverse()#1293

lumirlumir merged 2 commits intoreactjs:mainreactjs/ko.react.dev:mainfrom

wo-o29:fix/correct-lastName-reverse-to-toUpperCasewo-o29/ko.react.dev:fix/correct-lastName-reverse-to-toUpperCaseCopy head branch name to clipboard