This documentation is not using the current rendering mechanism and will be deleted by December 31st, 2020. The extension maintainer should switch to the new system. Details on how to use the rendering mechanism can be found here.
Please take care of the steps below, if you replace cbfoundation with t3foundation.
You must move the type of your content elements from cbfoundation to t3foundation.
You must replace the include static template of cbfoundation with the one of t3foundation.
You must replace all properties cbfoundation with t3foundation.