feat: add Telegram bot example documentation demonstrating kagent A2A integration.

Author: sebastianmaniak

src/app/docs/kagent/examples/page.mdx

@@ -26,5 +26,6 @@ import QuickLink from '@/components/quick-link';
     <QuickLink title="Slack and A2A" description="Manage Kubernetes resources in your cluster by chatting with kagent in Slack." href="/docs/kagent/examples/slack-a2a" />
     <QuickLink title="Discord and A2A" description="Manage Kubernetes resources in your cluster by chatting with kagent in Discord." href="/docs/kagent/examples/discord-a2a" />
     <QuickLink title="Human-in-the-Loop" description="Build an agent that pauses for your approval before creating, modifying, or deleting Kubernetes resources." href="/docs/kagent/examples/human-in-the-loop" />
+    <QuickLink title="Telegram Bot" description="Build a Telegram bot to manage your Kubernetes cluster through kagent and A2A." href="/docs/kagent/examples/telegram-bot" />
     </div>
 </div>