docs(1763): Add new func prop for sorting search results

Author: mattelen

documentation/src/components/Props.vue

@@ -192,7 +192,7 @@
         </tr>
         <tr class="table__tr">
           <td class="table__td"><strong>filteringSortFunc</strong></td>
-          <td class="table__td">Function</td>
+          <td class="table__td">Function => Int</td>
           <td class="table__td"></td>
           <td class="table__td">Allows a custom sorting function when the user searching.
             This function will be the <i>compareFn</i> argument for

documentation/src/components/example-sections/SelectWithSearch.vue

@@ -6,6 +6,8 @@
       object properties look at the <a href="#sub-asynchronous-select">ajax search example</a>.</p>
     <p><code>custom-label</code> accepts a function with the <code>option</code> object as the first param. It should
       return a string which is then used to display a custom label.</p>
+    <p>When sorting a filtered list, <code>filteringSortFunc</code> accepts a function for use in <code>Array.sort()</code>.
+      By default, it orders by the ascending length of each option.</p>
     <CodeDemoAndExample demo-name="SingleSelectSearch"/>
   </div>
 </template>