minor #21071 [Console] Adding custom indices (ThomasLandauer)

This PR was merged into the 6.4 branch.

Discussion
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[Console] Adding custom indices

Page: https://symfony.com/doc/6.4/console/style.html#user-input-methods

Wording is shortened from https://symfony.com/doc/current/components/console/helpers/questionhelper.html#let-the-user-choose-from-a-list-of-answers

Commits
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fb1931c [Console] Adding custom indices

Author: javiereguiluz

console/style.rst

@@ -327,6 +327,11 @@ User Input Methods
 
         $io->choice('Select the queue to analyze', ['queue1', 'queue2', 'queue3'], 'queue1');
 
+    Choice questions display both the choice value and a numeric index, which starts from 0
+    by default. To use custom indices, pass an array with custom numeric keys as the choice values::
+
+        $io->choice('Select the queue to analyze', [5 => 'queue1', 6 => 'queue2', 7 => 'queue3']);
+
     Finally, you can allow users to select multiple choices. To do so, users must
     separate each choice with a comma (e.g. typing ``1, 2`` will select choice 1
     and 2)::