Minor tweaks

Author: javiereguiluz

routing.rst

@@ -2837,13 +2837,14 @@ If you need to know the reason why a signed URI is invalid, you can use the
 
 .. tip::
 
-    If ``symfony/clock`` is installed, it is used for creating and verifying the
-    expiration. This allows you to :ref:`mock the current time in your tests
+    If ``symfony/clock`` is installed, it will be used to create and verify
+    expirations. This allows you to :ref:`mock the current time in your tests
     <clock_writing-tests>`.
 
 .. versionadded:: 7.3
 
-    ``symfony/clock`` support was added to ``UriSigner`` in Symfony 7.3.
+    Support for :doc:`Symfony Clock </components/clock>` in ``UriSigner`` was
+    introduced in Symfony 7.3.
 
 Troubleshooting
 ---------------