minor #16227 [CLI] Add link in setup.rst to Symfony CLI source repo (gnito-org)

This PR was squashed before being merged into the 5.3 branch.

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[CLI] Add link in setup.rst to Symfony CLI source repo

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16b1f1b [CLI] Add link in setup.rst to Symfony CLI source repo

Author: javiereguiluz

setup.rst

@@ -39,8 +39,8 @@ requirements. Open your console terminal and run this command:
 
 .. note::
 
-    The Symfony binary is developed internally at Symfony. If you want to
-    report a bug or suggest a new feature, please create an issue on
+    The Symfony CLI source is available at the `Symfony CLI organization repository`_. If
+    you want to report a bug or suggest a new feature, please create an issue on
     `symfony/cli`_.
 
 .. _creating-symfony-applications:
@@ -319,6 +319,7 @@ Learn More
 .. _`Install Composer`: https://getcomposer.org/download/
 .. _`install Symfony CLI`: https://symfony.com/download
 .. _`symfony/cli`: https://github.com/symfony/cli
+.. _`Symfony CLI organization repository`: https://github.com/symfony-cli
 .. _`The Symfony Demo Application`: https://github.com/symfony/demo
 .. _`Symfony Flex`: https://github.com/symfony/flex
 .. _`PHP security advisories database`: https://github.com/FriendsOfPHP/security-advisories