update README

README.md

@@ -1 +1,26 @@
-# p5-Getopt-CodeGenerator
+# NAME
+
+    Getopt::CodeGenerator - for Getopt::Long code geenerator
+
+# SYNOPSIS
+
+    $ perl -Ilib -MGetopt::CodeGenerator='--foo a  --bar 2 --mix 1 a --dry-run'
+    use Getopt::Long qw(:config posix_default no_ignore_case gnu_compat);
+    my %opt;
+    my $res = GetOptions(
+        'foo=s' => \$opt{foo},
+        'bar=i' => \$opt{bar},
+        'mix=s{2}' => \@{$opt{mix}},
+        'dry-run' => \$opt{dry_run},
+    );
+
+# LICENSE
+
+Copyright (C) tokubass.
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+# AUTHOR
+
+tokubass <tokubass {at} cpan.org>