Added a link to the source code

Author: wcabus

src/Pages/Home/JwtDecoder/JwtDecoder.cshtml

@@ -18,7 +18,8 @@
         <i class="glyphicon glyphicon-exclamation-sign" style="font-size: 3em" title="Warning"></i>
         <div class="mx-3">
             <strong>This tool does not send JWTs to any server, it only decodes the JWT locally in your browser.</strong><br/>
-            Always be cautious when pasting JWTs, as they may contain credentials or sensitive information.
+            Always be cautious when pasting JWTs, as they may contain credentials or sensitive information.<br/>
+            To validate how this page decodes and validates JWTs, you can inspect <a href="https://github.com/DuendeSoftware/demo.duendesoftware.com/blob/main/src/Pages/Home/JwtDecoder/JwtDecoder.cshtml" target="_blank">the source code of this page</a>.
         </div>
     </div>
     <div class="pb-2">