Update translation.rst

Co-authored-by: Matthieu Lempereur <[email protected]>

Author: bsramin

translation.rst

@@ -457,7 +457,7 @@ The ``translation:extract`` command looks for missing translations in:
 * Any PHP file/class stored in the ``src/`` directory that uses
   :ref:`Constraints Attributes <validation-constraints>`  with ``*message`` named argument(s).
 
-To read PHP files, is used the new ``PhpAstExtractor`` service supports all kinds of trans() function calls, usages of TranslatableMessage class, messages defined in validation constraints, etc...
+To read PHP files, is used the new ``PhpAstExtractor`` service supports all kinds of ``trans()`` function calls, usages of :class:`Symfony\\Component\\Translation\\TranslatableMessage` class, messages defined in validation constraints, etc...
 
 To use the new translation extractor, install the ``nikic/php-parser`` package using Composer, before using `translation:extract`.