minor #14642 [Console] Update questionhelper.rst (sebpacz)

This PR was merged into the 4.4 branch.

Discussion
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[Console] Update questionhelper.rst

I noticed that the link to the ask method redirects to Symfony\Component\Console\Command\Command instead of Symfony\Component\Console\Helper\QuestionHelper.

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Commits
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9b1e113 [Console] Update questionhelper.rst

Author: javiereguiluz

components/console/helpers/questionhelper.rst

@@ -12,7 +12,7 @@ helper set, which you can get by calling
     $helper = $this->getHelper('question');
 
 The Question Helper has a single method
-:method:`Symfony\\Component\\Console\\Command\\Command::ask` that needs an
+:method:`Symfony\\Component\\Console\\Helper\\QuestionHelper::ask` that needs an
 :class:`Symfony\\Component\\Console\\Input\\InputInterface` instance as the
 first argument, an :class:`Symfony\\Component\\Console\\Output\\OutputInterface`
 instance as the second argument and a