docs(gen): renew tutorial showcase on index

Author: bene2k1

index.mdx

@@ -57,23 +57,23 @@ meta:
 
 <Grid>
     <DefaultCard
-        title="Deploying WordPress with LEMP on Ubuntu Bionic Beaver"
-        url="/tutorials/wordpress-lemp-stack/"
+        title="Get started with agentic AI - building a flight assistant with function calling on open-weight Llama 3.1"
+        url="/tutorials/building-ai-application-function-calling/"
         label="Read more"
     />
     <DefaultCard
-        title="Deploying WordPress on Ubuntu Jammy Jellyfish (22.04 LTS) using LEMP"
-        url="/tutorials/wordpress-lemp-stack-ubuntu-jammy-jellyfish-22-04/"
+        title="Monitor GPU Instances using Cockpit and the NVIDIA Data Center GPU Manager (DCGM) Exporter"
+        url="/tutorials/monitor-gpu-instance-cockpit/"
         label="Read more"
     />
     <DefaultCard
-        title="Monitoring Instances with Zabbix on Ubuntu Jammy Jellyfish (22.04 LTS)"
-        url="/tutorials/zabbix-monitoring/"
+        title="Processing images and getting structured outputs with Pixtral vision model"
+        url="/tutorials/processing-images-structured-outputs-pixtral/"
         label="Read more"
     />
     <DefaultCard
-        title="Deploying a Zulip server"
-        url="/tutorials/zulip/"
+        title="Creating a documentation website using Object Storage bucket website and Material for MkDocs"
+        url="/tutorials/using-bucket-website-with-mkdocs/"
         label="Read more"
     />
 </Grid>