[DOCS] Fix explanation of content element TypoScript example

The example makes use of a reference, not a copy. This is now reflected
by the text.

Releases: master, 9.5
Resolves: #89571
Change-Id: I5d039de75f48b7524a32b036ec8d4d071b60d6f2
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62181


Tested-by: Daniel Siepmann <coding@daniel-siepmann.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Reviewed-by: Daniel Siepmann <coding@daniel-siepmann.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>

typo3/sysext/fluid_styled_content/Documentation/AddingYourOwnContentElements/Index.rst

@@ -164,7 +164,7 @@ Now you can register the rendering of your custom content element using a Fluid
        }
    }
 
-In this example a :ref:`cobj-fluidtemplate` content object is created using a copy from :typoscript:`lib.contentElement`
+In this example a :ref:`cobj-fluidtemplate` content object is created using a reference from :typoscript:`lib.contentElement`
 with a template identified by the :ref:`t3tsref:cobj-fluidtemplate-properties-templatename` `NewContentElement`.
 This will load a :file:`NewContentElement.html` template file from the :typoscript:`templateRootPaths`.