Revise GitHub Copilot Expert Hub training offering (#78)

Updated the offering details for GitHub Copilot training, including overview, topics, customer benefits, learning objectives, audience, delivery details, and prerequisites.

Author: lytcre

_offerings/offering-github-copilot-expert-hub.md

@@ -0,0 +1,82 @@
+ ---
+layout: page
+title: GitHub Copilot Expert Hub offering (training)
+description: GitHub experts guide participants through the core concepts, benefits, and practical implementation of an Expert Hub.
+parameterized_name: github-for-developers-training
+tag: Adopt
+category: AI
+is_included_in_premium_plus: true
+---
+
+### Overview
+
+In this session, GitHub experts guide participants through the core concepts, benefits, and practical implementation of an Expert Hub.
+
+Participants will learn how to:
+
+- Understand the purpose and structure of an internal Expert Hub  
+- Identify and empower Copilot Champions within their organization  
+- Utilize GitHub Discussions to promote collaboration, knowledge sharing, and problem solving  
+- Maintain security and privacy when handling proprietary information
+
+This session blends education, discussion, and demonstration to help teams confidently launch and sustain their own Expert Hub.
+
+### Topics
+
+- Introduction to the Expert Hub  
+- Champion Roles and Responsibilities  
+- Building a Knowledge Base with GitHub Discussions  
+- Promoting Collaboration and Engagement  
+- Privacy and Proprietary Information guidelines  
+- Scaling the Expert Hub Across Teams
+
+### Customer benefits
+
+This offering will help customers:
+
+- Centralize internal Copilot knowledge—eliminating the need to search multiple systems for documentation or policies  
+- Empower internal advocates to provide accurate, timely answers to their peers’ questions  
+- Encourage knowledge-sharing while protecting internal or proprietary information  
+- Sustain Copilot adoption through community-driven enablement and InnerSource principles
+
+### Learning objectives
+
+By the end of this training, learners will be able to:
+
+- Explain the purpose and value of the GitHub Expert Hub  
+- Identify and develop effective Expert Hub Champions  
+- Use GitHub Discussions to manage collaboration and community interactions  
+- Establish guidelines for internal communication and data protection  
+- Plan for ongoing community engagement and growth beyond the training
+
+### Audience
+
+**Required**:
+
+- Engineering Managers  
+- GitHub Copilot Champions  
+- Team leads  
+- Development leaders  
+- Project managers
+
+**Optional**:
+
+- Copilot Power Users  
+- Internal Communications Leads
+
+### Delivery details
+
+- **Level:** Fundamentals \[100\]  
+- **Offering type:** Training  
+- **Format:** Remote  
+- **Class size:** 15 participants maximum (with some flexibility)  
+- **Schedule:** 1 day; 1 hour  
+- **Customer pre-work:** Confirmation audience has **ALL** prerequisites completed.
+
+### Customer prerequisites
+
+Before this training, the customer needs to have in place:
+
+- A GitHub Enterprise Cloud or Enterprise Managed User (EMU) environment  
+- GitHub Copilot licenses deployed to users  
+- Access to a GitHub repository for internal collaboration and discussions