update the short url to the exercises

FF2024/index.html

@@ -47,7 +47,7 @@
 
     <div style="border: 2px solid blue; text-align: center; color: blue;">
         <p><span style="font-size: 24px;">This page URL:</span><br>
-        <span style="font-size: 36px;">https://tinyurl.com/FF2024-hands-on</span>
+        <span style="font-size: 36px;"><b>bit.ly/workkrow</b></span>
         </p>
     </div>
 <section id="hands-on-with-large-language-models" class="level1">
@@ -57,11 +57,9 @@ <h1>Hands-on with Large Language Models</h1>
 <h2 class="anchored" data-anchor-id="preparation">Preparation</h2>
 
 <p>You need to have access to a Large Language Model (LLM) tool to do the exercises. If you never tried an LLM this is
-your time! Head to Microsoft Copilot if your university provides that, below we collected details for each university.
-Otherwise feel free to use any other LLM tool, for example <a target="_blank" href="https://chat.openai.com/">ChatGPT</a> 
-(OpenAI, USA) or <a target="_blank" href="https://mistral.ai/">Mistral Le Chat</a> (French company).</p>
+your time!
 
-<h3 class="anchored" data-anchor-id="suggested-llms">Suggested LLMs</h3>
+<h4 class="anchored" data-anchor-id="suggested-llms">Suggested LLMs</h4>
 <p>
 	For most Universities and Instituions we suggest to use <a href="#microsoft-copilot">Microsoft Copilot</a>.
 </p>
@@ -75,7 +73,7 @@ <h3 class="anchored" data-anchor-id="suggested-llms">Suggested LLMs</h3>
 </p>
 
 
-<h3 class="anchored" id="microsoft-copilot" data-anchor-id="microsoft-copilot">Microsoft Copilot for Universities</h3>
+<h4 class="anchored" id="microsoft-copilot" data-anchor-id="microsoft-copilot">Microsoft Copilot for Universities</h4>
 
 <img width="100%" src="website_files/images/copilot-unis.jpeg" alt="Copilot Universities"></img>