fix rst syntax for ci

Author: MrYamous

bundles/best_practices.rst

@@ -560,4 +560,3 @@ Learn more
 .. _`valid license identifier`: https://spdx.org/licenses/
 .. _`GitHub Actions`: https://docs.github.com/en/free-pro-team@latest/actions
 .. _`Travis CI`: https://docs.travis-ci.com/
-.. _`Symfony 4.4 bundle documentation`: https://symfony.com/doc/4.4/bundles.html#bundle-directory-structure

html_sanitizer.rst

@@ -828,7 +828,7 @@ URLs of ``<a>`` elements:
         );
 
 Force/Allow Media URLs
-~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~
 
 Like :ref:`link URLs <html-sanitizer-link-url>`, you can also control the
 URLs of other media in the HTML. The following attributes are checked by

reference/constraints/Expression.rst

@@ -263,7 +263,7 @@ Parameter        Description
 ===============  ==============================================================
 
 ``negate``
-~~~~~~~~~~~
+~~~~~~~~~~
 
 **type**: ``boolean`` **default**: ``true``