https://git.ruby-lang.org/ruby.git/commit/?id=a10db32003

From a10db32003320a81c32a3733d9d97ba6e3614efa Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Fri, 16 Apr 2021 12:57:55 +0900
Subject: [ruby/optparse] Removed a duplicate section

https://github.com/ruby/optparse/commit/7ef3d89e78
---
 doc/optparse/tutorial.rdoc | 36 ------------------------------------
 1 file changed, 36 deletions(-)

diff --git a/doc/optparse/tutorial.rdoc b/doc/optparse/tutorial.rdoc
index dfdc244..8b17726 100644
--- a/doc/optparse/tutorial.rdoc
+++ b/doc/optparse/tutorial.rdoc
@@ -94,42 +94,6 @@ Executions: https://github.com/ruby/ruby/blob/trunk/doc/optparse/tutorial.rdoc#L94
   ["y", true]
   ["x", true]
 
-=== To Begin With
-
-To use \OptionParser:
-
-1. Require the \OptionParser code.
-2. Create an \OptionParser object.
-3. Define one or more options.
-4. Parse the command line.
-
-File +basic.rb+ defines three options, <tt>-x</tt>,
-<tt>-y</tt>, and <tt>-z</tt>, each with a descriptive string,
-and each with a block.
-
-  :include: ruby/basic.rb
-
-From these defined options, the parser automatically builds help text:
-
-  $ ruby basic.rb --help
-  Usage: basic [options]
-      -x                               Whether to X
-      -y                               Whether to Y
-      -z                               Whether to Z
-
-When an option is found during parsing,
-the block defined for the option is called with the argument value.
-
-Executions:
-
-  $ ruby basic.rb -x -z
-  ["x", true]
-  ["z", true]
-  $ ruby basic.rb -z -y -x
-  ["z", true]
-  ["y", true]
-  ["x", true]
-
 === Defining Options
 
 A common way to define an option in \OptionParser
-- 
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