docs(hertz): fix doc about client Get and Post (#1419)

Author: gaspardruan

content/en/docs/hertz/tutorials/basic-feature/client.md

@@ -241,7 +241,7 @@ func main() {
 
 ### Get
 
-The `Get` function returns the status code of the URL and the response body. If dst is too small, it will be replaced by the response body and returned, otherwise a new slice will be assigned.
+The `Get` function returns the status code of the URL and the response body. The contents of dst will be replaced by the body and returned, if the dst is too small a new slice will be allocated.
 
 The function will automatically follow the redirect.
 
@@ -268,7 +268,7 @@ func main() {
 
 ### Post
 
-The `Post` function sends a POST request to the specified URL using the given POST parameters. If dst is too small, it will be replaced by the response body and returned, otherwise a new slice will be assigned.
+The `Post` function sends a POST request to the specified URL using the given POST parameters. The contents of dst will be replaced by the body and returned, if the dst is too small a new slice will be allocated.
 
 The function will automatically follow the redirect.
 

content/zh/docs/hertz/tutorials/basic-feature/client.md

@@ -234,7 +234,7 @@ func main() {
 
 ### Get
 
-Get 函数返回 URL 的状态码和响应体。如果 dst 太小，则将被响应体替换并返回，否则将分配一个新的切片。
+Get 函数返回 URL 的状态码和响应体。dst 将被响应体替换并返回，如果 dst 太小，将分配一个新的切片。
 
 该函数会自动跟随重定向。
 
@@ -261,7 +261,7 @@ func main() {
 
 ### Post
 
-Post 函数使用给定的 POST 参数向指定的 URL 发送 POST 请求。如果 dst 太小，则将被响应体替换并返回，否则将分配一个新的切片。
+Post 函数使用给定的 POST 参数向指定的 URL 发送 POST 请求。dst 将被响应体替换并返回，如果 dst 太小，则将分配一个新的切片。
 
 该函数会自动跟随重定向。