diff --git a/README.md b/README.md
index e961ab9..17cc1e9 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,21 @@
 [![Codecov](https://img.shields.io/codecov/c/github/ko1nksm/getoptions?logo=codecov)](https://codecov.io/gh/ko1nksm/getoptions)
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-[![License](https://img.shields.io/github/license/ko1nksm/getoptions.svg)](https://github.com/ko1nksm/getoptions/blob/master/LICENSE)
+[![License](https://img.shields.io/github/license/ko1nksm/getoptions.svg)](https://github.com/ko1nksm/getoptions/blob/master/LICENSE)<br>
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+![zsh](https://img.shields.io/badge/zsh-cec7d1.svg?style=flat)
 
 An elegant option parser for shell scripts (full support for all POSIX shells)
 
@@ -26,7 +40,7 @@ parser_definition() {
   flag    FLAG    -f --flag                 -- "takes no arguments"
   param   PARAM   -p --param                -- "takes one argument"
   option  OPTION  -o --option on:"default"  -- "takes one optional argument"
-  disp    :usage  -h --help
+  disp    :usage     --help
   disp    VERSION    --version
 }
 
@@ -38,10 +52,16 @@ printf '%s\n' "$@" # rest arguments
 
 It generates a simple [option parser code](#how-to-see-the-option-parser-code) internally and parses the following arguments.
 
-```sh
-example.sh -f --flag -p VALUE --param VALUE -o --option -oVALUE --option=VALUE 1 2 3
+```console
+$ example.sh -f --flag -p value --param value -o --option -ovalue --option=value 1 2 3
+FLAG: 1, PARAM: value, OPTION: value
+1
+2
+3
 ```
 
+Automatic help generation is also provided.
+
 ```console
 $ example.sh --help
 
@@ -51,7 +71,7 @@ Options:
   -f, --flag                  takes no arguments
   -p, --param PARAM           takes one argument
   -o, --option[=OPTION]       takes one optional argument
-  -h, --help
+      --help
       --version
 ```