Update documentation.

Author: kovacsv

docs/Class_EmbeddedViewer.html

@@ -142,6 +142,14 @@ <h2>Constructor</h2>
 <div class="parameter_main">
 <div class="parameter_description">Callback that is called when the model with all of the textures is fully loaded.</div>
 </div>
+<div class="parameter_header">
+<span class="parameter_name">onModelLoadFailed</span>
+<span class="type parameter_type">function</span>
+<span class="parameter_attributes">(optional)</span>
+</div>
+<div class="parameter_main">
+<div class="parameter_description">Callback that is called when the model load failed.</div>
+</div>
 </div>
 </div>
 <h2>Methods</h2>