removed sub section icons

Author: DocGailZhou

docs/ArchitectureWAF.md

@@ -6,26 +6,26 @@ This architecture implements [Azure Well-Architected Framework (WAF)](https://le
 
 ## WAF Pillars Implementation
 
-### 🔐 Security
+###  Security
 - **Zero Trust Network:** Private VNet with private endpoints for all PaaS services
 - **Identity & Access:** Managed identities with RBAC and least-privilege access
 - **Secure Admin Access:** Azure Bastion + Jumpbox for internal administration
 - **Secrets Management:** Azure Key Vault integration
 
-### 📊 Operational Excellence  
+###  Operational Excellence  
 - **Observability:** Centralized logging via Log Analytics Workspace
 - **Application Monitoring:** Application Insights for telemetry and diagnostics
 - **Infrastructure as Code:** Bicep templates with parameterized configurations
 
-### 🚀 Performance Efficiency
+### Performance Efficiency
 - **Auto-scaling:** Container Apps with configurable scaling policies
 - **Regional Proximity:** Resources deployed in optimal Azure regions
 
-### 💰 Cost Optimization
+###  Cost Optimization
 - **Right-sizing:** Parameterized SKUs and capacity settings
 - **Resource Sharing:** Shared networking and monitoring infrastructure
 
-### 🛡️ Reliability
+###  Reliability
 - **High Availability:** Multi-zone deployment options
 - **Data Redundancy:** Configurable geo-replication for critical data stores
 - **Private Connectivity:** Eliminates internet dependencies