Update the README info.

README.md

@@ -22,18 +22,19 @@ Content is added by a site administrator in a rich text editing window.
 One of the editor options is "tinyMCE", and includes a raw HTML mode.
 It is thus possible to craft raw HTML snippets offline and copy them in.
 
-As currently saved in this repository,
-HTML lines are broken to wrapper structures (including style in tag) and internal content.
+Early commits to this repository had 
+HTML lines broken into wrapper structures (including style in tag) and internal content.
 The idea was to make changes trackable.
+This later migrated to copying the raw HTML fragment that can be edited by tinyMCE.
 
-Once saved by the Joomla editor (in this case, tinyMCE),
+Once saved by the Joomla editor,
 the wrapper structure disappears,
 resulting in single-line paragraphs and list items.
-As yet, those single lines have not been copied back to this repo
-over concern of degrading the ability to track changes.
 
 In the case of "news/7-agenda", there are in fact, two version of the HTML file:
 
   * "7-agenda.frag-tinymce.html" contains HTML fragment after it has been
     rewritten by the TinyMCE editor.  (Wrapper structure disappears.)
   * "7-agenda.frag.html" is the structured form.
+
+However, later versions simply name the raw HTML fragment with suffix ".frag.html".