Fix syntax

Author: wouterj

changelog.rst

@@ -83,15 +83,15 @@ Minor Documentation Changes
 * `#6088 <https://github.com/symfony/symfony-docs/pull/6088>`_ Update validation.rst (syedi)
 * `#6085 <https://github.com/symfony/symfony-docs/pull/6085>`_ Update validation.rst (syedi)
 * `#6094 <https://github.com/symfony/symfony-docs/pull/6094>`_ [Form] Added a missing php opening tag (dev-symfony-void)
-* `#5840 <https://github.com/symfony/symfony-docs/pull/5840>`_ [Contributing] [Standards] Add note about `trigger_error()` and deprecation messages (phansys)
+* `#5840 <https://github.com/symfony/symfony-docs/pull/5840>`_ [Contributing] [Standards] Add note about ``trigger_error()`` and deprecation messages (phansys)
 * `#6050 <https://github.com/symfony/symfony-docs/pull/6050>`_ Lots of minor fixes & applying best practices to form cookbook doc (ThomasLandauer, WouterJ)
 * `#5570 <https://github.com/symfony/symfony-docs/pull/5570>`_ Quick review of 'create framework' tutorial (WouterJ)
 * `#5445 <https://github.com/symfony/symfony-docs/pull/5445>`_ Reworded the explanation about the kernel.event_listener tag (javiereguiluz)
 * `#6054 <https://github.com/symfony/symfony-docs/pull/6054>`_ Remove 2.8 branch from patch documentation (Triiistan)
 * `#6057 <https://github.com/symfony/symfony-docs/pull/6057>`_ Fix PHP code for registering service (WouterJ)
 * `#6063 <https://github.com/symfony/symfony-docs/pull/6063>`_ minor #5829 Fix broken composer command (JHGitty)
 * `#6041 <https://github.com/symfony/symfony-docs/pull/6041>`_ Fixed misspelling of human in glossary.rst YAML (Wasserschlange)
-* `#6049 <https://github.com/symfony/symfony-docs/pull/6049>`_ Finish #5798 Add app_ prefix to form type names (OskarStark, WouterJ)
+* `#6049 <https://github.com/symfony/symfony-docs/pull/6049>`_ Finish #5798 Add ``app_`` prefix to form type names (OskarStark, WouterJ)
 * `#5829 <https://github.com/symfony/symfony-docs/pull/5829>`_ use composer command instead of editing json file (OskarStark)
 * `#6046 <https://github.com/symfony/symfony-docs/pull/6046>`_ Update framework.rst (typo in sesssion) (patrick-mota)
 * `#5890 <https://github.com/symfony/symfony-docs/pull/5890>`_ Updated article for modern Symfony practices and the use of bcrypt (javiereguiluz)