Please fix Qt3DCore documentation

The docs below, along with all APIs in this namespace:
https://doc.qt.io/qt-6/qt3dcore.html
suggests such CMake command:
target_link_libraries(mytarget PRIVATE Qt6::3dcore)

The CMake command above does nothing but introduces linking error. It should be:
target_link_libraries(mytarget PRIVATE Qt6::3DCore)
The capital letter is needed as, just as for other packages such as 'Quick', 'Widgets'.