Update README for Product Management role clarification

Author: VoxHash

README.md

@@ -14,7 +14,7 @@ Official Python SDK for LicenseChain - Secure license management for Python appl
 - **🛡️ Hardware ID Validation** - Prevent license sharing and unauthorized access
 - **🔔 Webhook Support** - Real-time license events and notifications
 - **📊 Analytics Integration** - Basic and advanced analytics with comprehensive metrics
-- **📦 Product Management** - Create and manage products for license sales (Seller/Admin)
+- **📦 Product Management** - Create and manage products for license sales (Seller)
 - **👥 Team Collaboration** - Team management and shared app/license access (Pro+)
 - **⚡ High Performance** - Optimized for production workloads
 - **🔄 Async Operations** - Non-blocking HTTP requests and data processing
@@ -312,7 +312,7 @@ usage = await client.get_usage_stats(period="30d")
 license_analytics = await client.get_license_analytics("license_id")
 ```
 
-##### Product Management (Seller/Admin only)
+##### Product Management (Seller only)
 
 ```python
 # List products