too many arguments

Signed-off-by: yuanxiao <yuan.xiao5@zte.com.cn>

README.md

diff --git a/README.md b/README.md
index 08ad945..93d6d77 100644
--- a/README.md
+++ b/README.md
@@ -106,9 +106,9 @@
 var ip = flag.IntP("flagname", "f", 1234, "help message")
 var flagvar bool
 func init() {
-    flag.BoolVarP("boolname", "b", true, "help message")
+	flag.BoolVarP(&flagvar, "boolname", "b", true, "help message")
 }
-flag.VarP(&flagVar, "varname", "v", 1234, "help message")
+flag.VarP(&flagVal, "varname", "v", "help message")
 ```
 
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