Return config to default example

Author: EkaterinaVu

vue.config.js

@@ -10,7 +10,7 @@ module.exports = {
       // Replace with your .js entry file path. 
       // To see the quiz example, use 'examples/quiz/main.js'
       // To see the support page example, use 'examples/support-page/main.js'
-      entry: entry || 'examples/support-page/main.js',
+      entry: entry || 'examples/questionnaire/main.js',
       template: 'public/index.html',
       filename: 'index.html'
     }