Update bundles/best_practices.rst

Co-authored-by: Antoine Makdessi <[email protected]>

Author: jmsche

bundles/best_practices.rst

@@ -546,7 +546,7 @@ Beware that templates use a simplified version of the logical path shown above.
 For example, an ``index.html.twig`` template located in the ``templates/Default/``
 directory of the AcmeBlogBundle, is referenced as ``@AcmeBlog/Default/index.html.twig``.
 
-Specifics for a UX bundle
+Specifics for a UX Bundle
 -------------------------
 
 Here are a few tricks to make your bundle install as a UX bundle.