[TASK] Fix syntax highlighting in Changelog for ImplementStaticRoutes

Use yaml as default highlighting. Add markup for code blocks.

Also add highlighting for file names.

Resolves: #86214
Releases: master
Change-Id: I716c9bf80f86e3188409d173d767469a84a28e82
Reviewed-on: https://review.typo3.org/58409


Reviewed-by: Richard Haeser <richard@maxserv.com>
Tested-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Mathias Brodala <mbrodala@pagemachine.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Tested-by: Mathias Brodala <mbrodala@pagemachine.de>
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>