Updated Extra Extension docs to relect recent changes in the extension.

1 files changed, 7 insertions, 9 deletions

diff --git a/docs/extensions/extra.md b/docs/extensions/extra.md
index 018a849..3e89427 100644
--- a/docs/extensions/extra.md
+++ b/docs/extensions/extra.md
@@ -10,10 +10,10 @@ A compilation of various Python-Markdown extensions that (mostly) imitates
 The supported extensions include:
 
 * [[Abbreviations]]
+* [[Attribute Lists]]
 * [[Definition_Lists]]
 * [[Fenced_Code_Blocks]]
 * [[Footnotes]]
-* [[HeaderId]]
 * [[Tables]]
 * [[Smart_Strong]]
 
@@ -34,11 +34,9 @@ extension. If you would like to be notified of such failures,
 you may set Python-Markdown's logger level to "WARN".
 
 There may be additional extensions that are distributed with
-Python-Markdown that are not included here in Extra. Those extensions
-are not part of PHP Markdown Extra, and therefore, not part of
-Python-Markdown Extra. If you really would like Extra to include
-additional extensions, we suggest creating your own clone of Extra
-under a different name (see [[Writing Extensions]]). You could also 
-edit the `extensions` global variable defined in the source, but be 
-aware that such changes may be lost when you upgrade to any future 
-version of Python-Markdown.
+Python-Markdown that are not included here in Extra. The features 
+of those extensions are not part of PHP Markdown Extra, and 
+therefore, not part of Python-Markdown Extra. If you really would 
+like Extra to include additional extensions, we suggest creating 
+your own clone of Extra under a different name 
+(see [[Writing Extensions]]).