[TASK] Revise "Setting page TSconfig" chapter (#384)

- Add a TOC
- Use "my_sitepackage" throughout the page
- Fix file reference

Releases: main, 12.4

Co-authored-by: Chris Müller <2566282+brotkrueml@users.noreply.github.com>

Documentation/UsingSetting/PageTSconfig.rst

@@ -24,6 +24,8 @@ It is also possible to set
 :ref:`set page TSconfig directly in the page properties <pagetsconfig-enter-data>` but
 this is not recommended anymore.
 
+.. contents::
+ :local:
 
 .. index:: pair: Page TSconfig; Default values
 .. _pagesettingdefaultpagetsconfig:
@@ -46,8 +48,8 @@ file:
 .. code-block:: typoscript
  :caption: EXT:my_sitepackage/Configuration/page.tsconfig
 
- @import 'EXT:myexample/Configuration/TsConfig/Page/Basic.tsconfig'
- @import 'EXT:myexample/Configuration/TsConfig/Page/Mod/Wizards/NewContentElement.tsconfig'
+ @import 'EXT:my_sitepackage/Configuration/TsConfig/Page/Basic.tsconfig'
+ @import 'EXT:my_sitepackage/Configuration/TsConfig/Page/Mod/Wizards/NewContentElement.tsconfig'
 
 
 Many page TSconfig settings can be set globally. This is useful for
@@ -61,7 +63,7 @@ can also set the page TSconfig globally.
 Global page TSconfig, compatible with TYPO3 v11 and v12
 -------------------------------------------------------
 
-In TYPO3 v11 installations the content of file:`Configuration/page.tsconfig`
+In TYPO3 v11 installations the content of :file:`Configuration/page.tsconfig`
 is not loaded automatically yet. You can achieve compatibility with both
 TYPO3 v11 and v12 by importing the content of this file with the API function
 :php:`ExtensionManagementUtility::addPageTSConfig`: