Update materials/introduction.html

LinkedIn logo link replaced with the new one

materials/introduction.html

@@ -60,7 +60,7 @@
     <!-- Links Section -->
     <div class="links-container">
         <a href="https://www.knowledgator.com/" class="link-button" target="_blank"><img src="https://assets-global.website-files.com/65902be8ba48a05dfdb73331/6590476fcc8e8f35b2332781_Group%201000002504%20(1).png" alt="Visit our website"></a>
-        <a href="https://www.linkedin.com/company/knowledgator/" class="link-button" target="_blank"><img src="https://www.edigitalagency.com.au/wp-content/uploads/Linkedin-logo-png.png" alt="Follow on LinkedIn"></a>
+        <a href="https://www.linkedin.com/company/knowledgator/" class="link-button" target="_blank"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/LinkedIn_Logo.svg/1280px-LinkedIn_Logo.svg.png" alt="Follow on LinkedIn"></a>
         <a href="https://huggingface.co/knowledgator/" class="link-button" target="_blank"><img src="https://vectorseek.com/wp-content/uploads/2023/12/Hugging-Face-Logo-Vector.svg-.png" alt="Hugging Face Profile"></a>
         <a href="https://twitter.com/knowledgator" class="link-button" target="_blank"><img src="https://freepnglogo.com/images/all_img/1691832278twitter-x-logo-png.png" alt="Follow on X"></a>
         <a href="https://discord.com/invite/dkyeAgs9DG" class="link-button" target="_blank"><img src="https://assets-global.website-files.com/6257adef93867e50d84d30e2/636e0b52aa9e99b832574a53_full_logo_blurple_RGB.png" alt="Join our Discord"></a>