Typo.

OfficeJS/src/renderjs/examples/interactions/A.html

 <div>
   A (gadget)
-  <button onclick="RenderJs.GadgetIndex.getGadgetById('A').jsCall1()">A.jsCall1 -> C.jsCall1</button>
+  <button onclick="RenderJs.GadgetIndex.getGadgetById('A').jsCall1()">A.jsCall1 -> B.jsCall1</button>
   <button onclick="$('#A').trigger('htmlEvent1')">HTML event 1</button>
   <button onclick="$('#A').trigger('htmlEvent2')">HTML event 2</button>
   <p id="hide" style="display:none;"> hidden text on myownHTMlEvent1</p>