Adding section about copilot (#9912)

Update rule.md

rules/website-chatbot/rule.md

@@ -118,3 +118,12 @@ While both platforms offer unique features, **Chatbase** stands out as the super
 * Easier customization and integration with various tools
 * Chatbase's user-friendly interface makes it accessible to a wide range of users. A prompt engineer can setup, tweak and improve the system. No development required
 * Botpress lacks the intuitive interface of Chatbase, and without extensive workflow development and testing, will fail in conversations
+
+However, if your company already **runs on Microsoft 365 and Office systems**, then **Microsoft Copilot** is likely the best solution:
+
+* Deeply integrated into Microsoft 365 – Works seamlessly with Teams, SharePoint, Outlook, OneDrive, and Power Apps  
+* Enterprise-grade security – Built within Microsoft’s security framework, using **Azure AD authentication** and **Microsoft Graph API**  
+* Minimal development effort – No need to train a model or build a front-end; Copilot leverages company data automatically  
+* Built-in compliance and data governance – Ensures chat interactions follow corporate security policies  
+
+For businesses using Microsoft’s ecosystem, **Copilot provides the most secure and scalable internal chatbot solution** while reducing the need for custom development.