doc typo

README_zh.md

@@ -546,10 +546,10 @@ allow_ports = 2000-3000,3001,3003,4000-50000
 type = tcp
 local_port = 22
 remote_port = 6000
-bandwith_limit = 1MB
+bandwidth_limit = 1MB
 ```
 
-在代理配置中增加 `bandwith_limit` 字段启用此功能，目前仅支持 `MB` 和 `KB` 单位。
+在代理配置中增加 `bandwidth_limit` 字段启用此功能，目前仅支持 `MB` 和 `KB` 单位。
 
 ### TCP 多路复用
 

conf/frpc_full.ini

@@ -75,8 +75,8 @@ meta_var2 = 234
 type = tcp
 local_ip = 127.0.0.1
 local_port = 22
-# limit bandwith for this proxy, unit is KB and MB
+# limit bandwidth for this proxy, unit is KB and MB
-bandwith_limit = 1MB
+bandwidth_limit = 1MB
 # true or false, if true, messages between frps and frpc will be encrypted, default is false
 use_encryption = false
 # if true, message will be compressed