[Reference] Fix assets links have wrong label

Asset options shared the same label, making the reading of this paragraph a bit confusing.

I'm more signaling you than fixing it with confidence, as i'm not sure how to use the syntax there with references pages. 

Targetting 5.4 because the "bug" is on all current versions (5.4 -> 7.1)

Author: smnandre

reference/twig_reference.rst

@@ -120,8 +120,10 @@ the application is installed (e.g. in case the project is accessed in a host
 subdirectory) and the optional asset package base path.
 
 Symfony provides various cache busting implementations via the
-:ref:`reference-framework-assets-version`, :ref:`reference-assets-version-strategy`,
-and :ref:`reference-assets-json-manifest-path` configuration options.
+:ref:`assets.version <reference-framework-assets-version>`, 
+:ref:`assets.version_strategy <reference-assets-version-strategy>`, 
+and :ref:`assets.json_manifest_path <reference-assets-json-manifest-path>` 
+configuration options.
 
 .. seealso::