Clarify "Editions"

@giffmex - sorry I should have been clearer. We’ll only call things an
“Edition” if it is distributed via tiddlywiki.com. So for instance your
NoteStormTW should be listed under “Resources” until it’s been bought
into tiddlywiki.com.

We’ve already had the situation where people who have built editions
(and indeed plugins) haven’t been able to keep them up to date with the
latest versions of the core. So I want to draw a clear distinction
between those things that are part of the main distribution, and have
some guarantee of long term support and those things that are
distributed independently.

editions/tw5.com/tiddlers/editions/Editions.tid

@@ -3,11 +3,13 @@ tags: TableOfContents
 created: 201409081255
 modified: 201409081255
 
-Some ~TiddlyWiki users have created template ~TiddlyWikis for special uses. Below are some of them.
+TiddlyWiki is distributed in several different editions that are tuned for specific purposes. Each one consists of the same TiddlyWiki core components along with the required plugins, documentation and sample content.
+
+You can mix and match the components of these editions, to make a unique solution to your particular application.
 
 <div class="tc-link-info">
 
-<$list filter="[tag[usereditions]!sort[modified]]">
+<$list filter="[tag[Editions]!sort[modified]]">
 
 <div class="tc-link-info-item">