refactor(typescript-guide): improve grammar and set right command#8111

ThierryRakotomanana wants to merge 2 commits intowebpack:mainwebpack/webpack.js.org:mainfrom

ThierryRakotomanana:fix/typescript-guide-config-and-setup-errorsThierryRakotomanana/webpack.js.org:fix/typescript-guide-config-and-setup-errorsCopy head branch name to clipboard