This edition of TiddlyWiki is a tool to help people make and submit improvements to the main documentation on http://tiddlywiki.com/
In this wiki, all the tiddlers from http://tiddlywiki.com (to be precise, all the tiddlers [[from here|https://github.com/Jermolene/TiddlyWiki5/tree/master/editions/tw5.com/tiddlers]]) are packed into a plugin:
[[$:/plugins/tiddlywiki/tw5.com-docs]]
This means that the original documentation tiddlers become //shadow tiddlers//: if you edit them, you can just delete your modified copy to revert to the shadow value.
Note that currently some functionality doesn't work properly because of macros and filters written expecting all the content tiddlers to be non-shadow tiddlers. For example, see [[Community]].