Update README.md

范例的命令有个位置打错了空格，会让参数报错，无法执行。
buvta · Mar 31, 2023 · 1c79a8d · 1c79a8d
1 parent 7af41a7
commit 1c79a8d
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/README.md b/README.md
@@ -42,19 +42,19 @@ echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all
 #### Forward sock5
 
 ```
-pingtunnel.exe -type client -l: 4455 -s www.yourserver.com -sock5 1
+pingtunnel.exe -type client -l :4455 -s www.yourserver.com -sock5 1
 ```
 
 #### Forward tcp
 
 ```
-pingtunnel.exe -type client -l: 4455 -s www.yourserver.com -t www.yourserver.com:4455 -tcp 1
+pingtunnel.exe -type client -l :4455 -s www.yourserver.com -t www.yourserver.com:4455 -tcp 1
 ```
 
 #### Forward udp
 
 ```
-pingtunnel.exe -type client -l: 4455 -s www.yourserver.com -t www.yourserver.com:4455
+pingtunnel.exe -type client -l :4455 -s www.yourserver.com -t www.yourserver.com:4455
 ```
 
 ### Use Docker