Update index.md - fix links

Author: Tom-Dynamsoft

programming/javascript/user-guide/index.md

@@ -142,15 +142,15 @@ The complete code of the "Hello World" example is shown below
 <!--TOM: Update the code links-->
 
 <p align="center" style="text-align:center; white-space: normal; ">
-  <a target="_blank" href="https://github.com/Dynamsoft/barcode-reader-javascript-samples/blob/v10.5.30/hello-world/hello-world.html" title="Code in Github" style="text-decoration:none;">
+  <a target="_blank" href="https://github.com/Dynamsoft/barcode-reader-javascript-samples/blob/main/foundational-api-samples/hello-world/hello-world.html" title="Code in Github" style="text-decoration:none;">
     <img src="https://cdn.jsdelivr.net/npm/simple-icons@3.0.1/icons/github.svg" alt="Code in Github" width="20" height="20" style="width:20px;height:20px;">
   </a>
   &nbsp;
   <a target="_blank" href="https://jsfiddle.net/DynamsoftTeam/csm2f9wb/" title="Run via JSFiddle" style="text-decoration:none;">
     <img src="https://cdn.jsdelivr.net/npm/simple-icons@3.0.1/icons/jsfiddle.svg" alt="Run via JSFiddle" width="20" height="20" style="width:20px;height:20px;" >
   </a>
   &nbsp;
-  <a target="_blank" href="https://demo.dynamsoft.com/Samples/DBR/JS/hello-world/hello-world.html?ver=10.5.30&utm_source=guide" title="Run in Dynamsoft" style="text-decoration:none;">
+  <a target="_blank" href="https://demo.dynamsoft.com/Samples/DBR/JS/foundational-api-samples/hello-world/hello-world.html?ver=10.5.3000&utm_source=guide" title="Run in Dynamsoft" style="text-decoration:none;">
     <img src="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.0.0/svgs/solid/circle-play.svg" alt="Run in Dynamsoft" width="20" height="20" style="width:20px;height:20px;">
   </a>
 </p>