Update react-dom in /packages/oc-template-react from 16.3.2 to 16.4.0#227

ghost wants to merge 1 commit intomasteropencomponents/oc-template-react:masterfrom

react-dom-16.4.0-#223.2.1opencomponents/oc-template-react:react-dom-16.4.0-#223.2.1Copy head branch name to clipboard