some updates

Author: Tom-Dynamsoft

index.html

@@ -141,7 +141,7 @@ <h3>Barcode Reader Samples</h3>
                         Controls</a><span id="icon022" class="tooltipIcon"></span>
                     <a class="github" href="https://github.com/Dynamsoft/barcode-reader-javascript-samples/blob/master/2.ui-tweaking/2.read-video-no-extra-control.html" title="Check code on GitHub"></a>
                 </div>
-                <div class="file"><a data-balloon-length="fit" data-balloon-pos="down" aria-label="Use custom controls to manipulate the Camera UI." class="button title" href="2.ui-tweaking/3.read-video-with-external-control.html">Set up External Controls</a><span id="icon023"
+                <div class="file"><a data-balloon-length="fit" data-balloon-pos="down" aria-label="Use custom controls to manipulate the Camera UI." class="button title" href="2.ui-tweaking/3.read-video-with-external-control.html">Set Up External Controls</a><span id="icon023"
                         class="tooltipIcon"></span>
                     <a class="github" href="https://github.com/Dynamsoft/barcode-reader-javascript-samples/blob/master/2.ui-tweaking/3.read-video-with-external-control.html" title="Check code on GitHub"></a>
                 </div>