6 files changed, 26 insertions, 9 deletions
diff --git a/doc/features.mdwn b/doc/features.mdwn
index f116e00e3..0992130e5 100644
--- a/doc/features.mdwn
+++ b/doc/features.mdwn
@@ -26,6 +26,9 @@ Some of ikiwiki's features:
   provided by ikiwiki aside from regular markdown is the [[WikiLink]] and 
   [[PreprocessorDirective]]
 
+  If you prefer to use some other markup language, ikiwiki allows others to
+  be added by [[plugins]].
+
 * support for other file types
 
   ikiwiki also supports files of any other type, including plain text,
@@ -120,10 +123,10 @@ Some of ikiwiki's features:
 * [[Plugins]]
 
   Plugins can be used to add additional features to ikiwiki. The interface
-  is quite flexible, allowing plugins to register
-  [[PreProcessorDirective]]s, hook into [[CGI]] mode, and more. Ikiwiki's
-  backend RCS support is also pluggable, so support for new revision
-  control systems can be added to ikiwiki. 
+  is quite flexible, allowing plugins to implement additional markup
+  languages, register [[PreProcessorDirective]]s, hook into [[CGI]] mode,
+  and more. Ikiwiki's backend RCS support is also pluggable, so support for
+  new revision control systems can be added to ikiwiki. 
 
 * [[todo/utf8]]
 
diff --git a/doc/index.mdwn b/doc/index.mdwn
index c247cf744..3191d1c24 100644
--- a/doc/index.mdwn
+++ b/doc/index.mdwn
@@ -1,8 +1,8 @@
 [[ikiwiki_logo|logo/ikiwiki.png]]  
 ikiwiki is a **wiki compiler**. It converts wiki pages
 into html pages suitable for publishing on a website. Unlike a traditional
-wiki, ikiwiki does not have its own means of storing page history or its own
-markup language. Instead it can use [[Subversion]] (or [[Git]]) and [[MarkDown]].
+wiki, ikiwiki does not have its own means of storing page history.
+Instead it can use [[Subversion]] (or [[Git]]).
 
 * [[News]] is a blog (built using ikiwiki) of news items about ikiwiki. It's the best way to find out when there's a new version to [[Download]].
 
diff --git a/doc/plugins.mdwn b/doc/plugins.mdwn
index 05b661f2b..d79a3bd3b 100644
--- a/doc/plugins.mdwn
+++ b/doc/plugins.mdwn
@@ -1,7 +1,7 @@
 There's documentation if you want to [[write]] your own plugins, or you can
 install and use plugins contributed by others. 
 
-The [[inline]] and [[htmlscrubber]] plugins are enabled by default.
+The [[mdwn]], [[inline]], and [[htmlscrubber]] plugins are enabled by default.
 
 To enable other plugins, use the `--plugin` switch described in [[usage]],
 or the equivalent `add_plugins` line in [[ikiwiki.setup]].
diff --git a/doc/plugins/mdwn.mdwn b/doc/plugins/mdwn.mdwn
new file mode 100644
index 000000000..d1b1254bf
--- /dev/null
+++ b/doc/plugins/mdwn.mdwn
@@ -0,0 +1,3 @@
+This plugin, which is enabled by default, lets ikwiki convert files with
+names ending in ".mwdn" to html. It uses the [[markdown]] minimal markup
+language.
diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index 515c4d90d..5be90efdf 100644
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -55,7 +55,8 @@ Note that if the [[htmlscrubber]] is enabled, html in
 [[PreProcessorDirective]] output is sanitised, which may limit what your
 plugin can do. Also, the rest of the page content is not in html format at
 preprocessor time. Text output by a preprocessor directive will be passed
-through markdown along with the rest of the page.
+through markdown (or whatever engine is used to htmlize the page) along
+with the rest of the page.
 
 # Other types of hooks
 
@@ -79,6 +80,15 @@ Runs on the raw source of a page, before anything else touches it, and can
 make arbitrary changes. The function is passed named parameters `page` and
 `content` and should return the filtered content.
 
+## htmlize
+
+	IkiWiki::hook(type => "htmlize", id => "ext", call => \&filter);
+
+Runs on the raw source of a page and turns it into html. The id parameter
+specifies the filename extension that a file must have to be htmlized using
+this plugin. This is how you can add support for new and exciting markup
+languages to ikiwiki.
+
 ## pagetemplate
 
 	IkiWiki::hook(type => "pagetemplate", id => "foo", call => \&pagetemplate);
diff --git a/doc/usage.mdwn b/doc/usage.mdwn
index deb94e415..6ff71056f 100644
--- a/doc/usage.mdwn
+++ b/doc/usage.mdwn
@@ -11,7 +11,8 @@ ikiwiki --setup configfile
 # DESCRIPTION
 
 `ikiwiki` is a wiki compiler. It builds static html pages for a wiki, from
-`source` in the [[MarkDown]] language, and writes it out to `destination`.
+`source` in the [[MarkDown]] language (or others), and writes it out to
+`destination`.
 
 Note that most options can be shortened to single letters, and boolean
 flags such as --verbose can be negated with --no-verbose.