change the widget config text

app/src/main/res/layout/widget_config.xml

@@ -17,7 +17,7 @@
         android:background="@null"
         android:gravity="top"
         android:padding="@dimen/activity_margin"
-        android:text="hello world"
+        android:text="@string/widget_config"
         android:textSize="18sp"/>
 
     <Button

app/src/main/res/values/strings.xml

@@ -1,3 +1,4 @@
 <resources>
     <string name="app_name">Simple Notes</string>
+    <string name="widget_config">Thank you for using Simple Notes.\nFor more simple apps please visit SimpleMobileTools.com.\n</string>
 </resources>