fix sample

Author: FilippovAM

demos/Gantt_Resource_Instance_Usage.html

@@ -116,7 +116,7 @@
 <div
         anygantt
         ac-data="myData"
-        ac-title="External events"
+        ac-title="External Events example, see browser console for details."
         ac-splitter-position="171"
         ac-instance="ch"
         ac-chart-draw="decorate"