message: Display last update time on docs
diff: @@ -142,6 +142,7 @@ module.exports = {
  routeBasePath: "/",
  sidebarCollapsible: false,
  sidebarPath: require.resolve("./sidebars.js"),
  + showLastUpdateTime: true,
  // Please change this to your repo.
  editUrl:
  "https://github.com/serverless-stack/serverless-stack/edit/master/www/",
  