add clipboard in example

Author: lucasferreiralimax

src/app/example/example.component.html

@@ -43,6 +43,7 @@
     (voiceTranscript)="returnVoiceTranscript($event)"
     [lang]="langSelect"
     [mode]="modeSelect"
+    [clipboard]="true"
   />
 </nucleus-box>