Merge pull request #9 from d2phap/dependabot/npm_and_yarn/demo/node-sass-4.13.1

Bump node-sass from 4.13.0 to 4.13.1 in /demo

Author: d2phap

demo/package-lock.json

@@ -32,7 +32,7 @@
     "@babel/preset-env": "^7.6.3",
     "babel-loader": "^8.0.6",
     "css-loader": "^3.2.0",
-    "node-sass": "^4.13.0",
+    "node-sass": "^4.13.1",
     "sass-loader": "^8.0.0",
     "vue-loader": "^15.7.1",
     "vue-style-loader": "^4.1.2",