diff --git a/Extension-A.md b/Extension-A.md
index 61dce97..1a7e1ab 100644
--- a/Extension-A.md
+++ b/Extension-A.md
@@ -1,4 +1,4 @@
-ACL Configuration (Access Control Lists)
+### ACL Configuration (Access Control Lists)
 
 🔹 Must-Have ACL Rules
 
@@ -39,7 +39,7 @@ ipv6 access-list ICMP_PROTECT
 interface Vlan1
  ipv6 traffic-filter ICMP_PROTECT in
 
-DHCPv6 Configuration
+### DHCPv6 Configuration
 
 🔹 Must-Have: SLAAC with DHCPv6 (Stateless) – General Setup
 
@@ -75,7 +75,7 @@ interface GigabitEthernet0/0
 
 (Note: Not implemented in PT, but conceptually shown for transition presentation.)
 
-✅ OSPFv3 Configuration (Replacing Static Routing)
+### OSPFv3 Configuration (Replacing Static Routing)
 
 🔹 Must-Have: Full OSPFv3 Setup with Process 42 and Area 0