build(deps-dev): bump node-sass from 4.11.0 to 4.13.1 in /showcase/resources/reveal#13

dependabot[bot] wants to merge 1 commit intomasterTalkControl/talk-control:masterfrom

dependabot/npm_and_yarn/showcase/resources/reveal/node-sass-4.13.1TalkControl/talk-control:dependabot/npm_and_yarn/showcase/resources/reveal/node-sass-4.13.1Copy head branch name to clipboard