Update 07-Customizing-Contao.md

Added getPageLayout-Hook
Improve the list of regular expressions

* Complete and sort the list of regular expressions in a nested table.
* Escape special characters.
Adapted changes from lionel-m to german
Merge branch '2.11' into 3.0
Added missing regular expressions for Contao 3.0
Translated missing regular expressions to german
Merge branch '3.0' into 3.1
Added missing regular expressions for Contao 3.1
Translated missing regular expressions to german
Added generateBreadcrumb-Hook
Added english translation for generateBreadcrumb hook
Merge branch '2.11' into 3.0
Use namespace in Contao 3
Merge branch '3.0' into 3.1
Insert tag : toggle_view
Added german translation for toggle_view inserttag
Merge branch '3.0' into 3.1
Update 06-Data-Container-Arrays.md

**wrap** scheint seit TL 2.6 keine Funktion zu haben
Update 06-Data-Container-Arrays.md

**wrap** scheint seit TL 2.6 keine Funktion zu haben
Merge branch '2.11' into 3.0