#3326 Maximum selection example

Fixing the documentation for maximumselectionlength

docs/_includes/examples/multiple-max.html

@@ -7,7 +7,7 @@
   <p>
     Select2 multi-value select boxes can set restrictions regarding the
     maximum number of options selected. The select below is declared with
-    the <code>multiple</code> attribute with <code>maxSelectionLength</code>
+    the <code>multiple</code> attribute with <code>maximumSelectionLength</code>
     in the select2 options.
   </p>