changed dead links with descriptions ...these are still missing:
* $:/language/Docs/ModuleTypes/allfilteroperator
* $:/language/Docs/ModuleTypes/info
* $:/language/Docs/ModuleTypes/library
ModuleType.tid refers to a non-existing "Internals" tab in the control panel for a list of module types used in this wiki. I propose listing these directly in this tiddler as an alternative.