Update package.json

Author: app-generator

package.json

@@ -5,6 +5,10 @@
     "author": "Creative Tim & AppSeed",
     "license": "See license in https://www.creative-tim.com/license",
     "description": "Material UI version of Soft UI Dashboard by Creative Tim",
+    "build": {
+        "yarn": "v14.0.0,v16.0.0",
+        "npm": "v14.0.0,v16.0.0"
+    },     
     "bugs": {
         "url": "https://github.com/app-generator/react-soft-ui-dashboard/issues"
     },