minor symfony#21029 [Bundle] Best Practice: Add link for create ux-bundle (Jibbarth)

This PR was merged into the 6.4 branch.

Discussion
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[Bundle] Best Practice: Add link for create ux-bundle

I always have trouble to find the ux-bundle page, let's add a link from best_practice page

Commits
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f237d96 [Bundle] Best Practice: Add link for create ux-bundle

Author: javiereguiluz

bundles/best_practices.rst

@@ -559,6 +559,7 @@ Learn more
 
 * :doc:`/bundles/extension`
 * :doc:`/bundles/configuration`
+* :doc:`/frontend/create_ux_bundle`
 
 .. _`PSR-4`: https://www.php-fig.org/psr/psr-4/
 .. _`Symfony Flex recipe`: https://github.com/symfony/recipes