Modify comment syntax error (#5094)

client/httplib/error_code.go

@@ -19,17 +19,17 @@ import (
 )
 
 var InvalidUrl = berror.DefineCode(4001001, moduleName, "InvalidUrl", `
-You pass a invalid url to httplib module. Please check your url, be careful about special character. 
+You pass an invalid url to httplib module. Please check your url, be careful about special character. 
 `)
 
 var InvalidUrlProtocolVersion = berror.DefineCode(4001002, moduleName, "InvalidUrlProtocolVersion", `
-You pass a invalid protocol version. In practice, we use HTTP/1.0, HTTP/1.1, HTTP/1.2
+You pass an invalid protocol version. In practice, we use HTTP/1.0, HTTP/1.1, HTTP/1.2
 But something like HTTP/3.2 is valid for client, and the major version is 3, minor version is 2.
 but you must confirm that server support those abnormal protocol version.
 `)
 
 var UnsupportedBodyType = berror.DefineCode(4001003, moduleName, "UnsupportedBodyType", `
-You use a invalid data as request body.
+You use an invalid data as request body.
 For now, we only support type string and byte[].
 `)
 

client/httplib/httplib.go

@@ -112,7 +112,7 @@ func Head(url string) *BeegoHTTPRequest {
 	return NewBeegoRequest(url, "HEAD")
 }
 
-// BeegoHTTPRequest provides more useful methods than http.Request for requesting a url.
+// BeegoHTTPRequest provides more useful methods than http.Request for requesting an url.
 type BeegoHTTPRequest struct {
 	url     string
 	req     *http.Request