PSA:
Going forward, <TemplateURL> is deprecated (This is an entry you'll see when creating an entry via dockerMan)
After looking at some issues regarding template maintainers changing Support Threads, I discovered that of the maintainers that even set that value, fully 10% of the entries were incorrect, not to mention that tons of the templates (over 50%) never even included the entry in the first place.
The application feed for CA will now automatically overwrite any entry that the author sets with the proper entry.
In a nutshell, because of the pervasiveness of CA if you decide to populate that entry when creating a template, then you're just wasting your time.
FCP will catch all of the errors in already installed containers, and has a built-in fix for this.