add prop to show/hide source code for demos

docs/src/components/Demo/index.vue

@@ -5,7 +5,7 @@
         <component :is="mainFile" v-if="mode === 'vue'" />
         <react-renderer :component="mainFile" v-if="mode === 'react'" />
       </div>
-      <div class="demo__source">
+      <div class="demo__source" v-if="!hideSourceCode">
         <div class="demo__tabs" v-if="showFileNames">
           <button
             class="demo__tab"
@@ -62,6 +62,11 @@ export default {
       type: String,
       default: null,
     },
+
+    hideSourceCode: {
+      type: Boolean,
+      default: false,
+    }
   },
 
   data() {