test3

package.json

@@ -15,6 +15,10 @@
     "react-router-dom": "^5.2.0",
     "react-scripts": "^3.4.3"
   },
+  "engines": {
+    "node":"12.16.3",
+    "npm": "6.14.4"
+ },
   "scripts": {
     "start": "npm install && react-scripts start",
     "build": "react-scripts build",