Add documentation to WIKI for non-module scripts

[compwiz32]

the task registration script in non-module scripts is excellent but not easy to find on its own. add relevant documentation to WIKI and README so that users can find that info easier. Also it allows for deeper discussion of topics and concepts than what is feasible in the notes section of a script.

[dohminion]

I swear I created this. You sure you didn't remove it when you were reformatting? :)