diff --git a/ip-renew/README.md b/ip-renew/README.md
index 81ae3e5..27ed8af 100644
--- a/ip-renew/README.md
+++ b/ip-renew/README.md
@@ -4,33 +4,32 @@
 - MAC주소가 변경되면 ISP 모뎀에서 새로운 기기로 인식하고 새로운 IP를 할당한다.
 - Powershell (관리자로 실행):
 
-    ```powershell
-    # 현재 네트워크 어댑터 목록 확인
-    Get-NetAdapter
-    
-    Name                      InterfaceDescription                    ifIndex Status       MacAddress          LinkSpeed
-    ----                      --------------------                    ------- ------       ----------          ---------
-    vEthernet (WSL)           Hyper-V Virtual Ethernet Adapter             26 Up           00-15-5D-20-8B-D9     10 Gbps
-    VMware Network Adapte...1 VMware Virtual Ethernet Adapter for ...      14 Up           00-50-56-C0-00-01    100 Mbps
-    vEthernet (Default Swi... Hyper-V Virtual Ethernet Adapter #2          30 Up           00-15-5D-73-E2-0C     10 Gbps
-    VMware Network Adapte...8 VMware Virtual Ethernet Adapter for ...      11 Up           00-50-56-C0-00-08    100 Mbps
-    Bluetooth 네트워크 연결   Bluetooth Device (Personal Area Netw...      10 Not Present  E4-60-17-4B-6D-64       0 bps
-    이더넷                    Intel(R) Ethernet Controller (3) I225-V       8 Not Present  D8-43-AE-3D-0F-64       0 bps
-    Wi-Fi                     Intel(R) Wi-Fi 6E AX211 160MHz                3 Up           E4-60-17-4B-6D-60    721 Mbps
+```powershell
+# 현재 네트워크 어댑터 목록 확인
+Get-NetAdapter
 
-    
-    # 원하는 MAC 주소로 변경
-    Set-NetAdapter -Name "이더넷" -MacAddress "00-11-22-33-44-55" -Confirm:$false
+Name                      InterfaceDescription                    ifIndex Status       MacAddress          LinkSpeed
+----                      --------------------                    ------- ------       ----------          ---------
+vEthernet (WSL)           Hyper-V Virtual Ethernet Adapter             26 Up           00-15-5D-20-8B-D9     10 Gbps
+VMware Network Adapte...1 VMware Virtual Ethernet Adapter for ...      14 Up           00-50-56-C0-00-01    100 Mbps
+vEthernet (Default Swi... Hyper-V Virtual Ethernet Adapter #2          30 Up           00-15-5D-73-E2-0C     10 Gbps
+VMware Network Adapte...8 VMware Virtual Ethernet Adapter for ...      11 Up           00-50-56-C0-00-08    100 Mbps
+Bluetooth 네트워크 연결   Bluetooth Device (Personal Area Netw...      10 Not Present  E4-60-17-4B-6D-64       0 bps
+이더넷                    Intel(R) Ethernet Controller (3) I225-V       8 Not Present  D8-43-AE-3D-0F-64       0 bps
+Wi-Fi                     Intel(R) Wi-Fi 6E AX211 160MHz                3 Up           E4-60-17-4B-6D-60    721 Mbps
 
 
-    # 랜덤 MAC 주소 생성 및 설정
-    $randomMac = (0..5 | ForEach-Object { "{0:X2}" -f (Get-Random -Minimum 0 -Maximum 255) }) -join '-'
-    Set-NetAdapter -Name "이더넷" -MacAddress $randomMac -Confirm:$false
+# 원하는 MAC 주소로 변경
+Set-NetAdapter -Name "이더넷" -MacAddress "00-11-22-33-44-55" -Confirm:$false
 
-    
-    # Factory default 주소로 복원
-    Set-NetAdapter -Name "이더넷" -MacAddress "" -Confirm:$false
-    ```
+
+# 랜덤 MAC 주소 생성 및 설정
+$randomMac = (0..5 | ForEach-Object { "{0:X2}" -f (Get-Random -Minimum 0 -Maximum 255) }) -join '-'; Set-NetAdapter -Name "이더넷" -MacAddress $randomMac -Confirm:$false
+
+
+# Factory default 주소로 복원
+Set-NetAdapter -Name "이더넷" -MacAddress "" -Confirm:$false
+```
 
 
 ## 국내 ISP별 IP 범위 정보