1 files changed, 32 insertions, 13 deletions

diff --git a/doc/plugins/meta.mdwn b/doc/plugins/meta.mdwn
index 5c3098e56..cebe11f56 100644
--- a/doc/plugins/meta.mdwn
+++ b/doc/plugins/meta.mdwn
@@ -10,21 +10,25 @@ Enter the metadata as follows:
 The first form sets a given field to a given value, while the second form
 also specifies some additional sub-parameters.
 
+The field values are treated as HTML entity-escaped text, so you can include
+a quote in the text by writing `"` and so on.
+
 You can use any field names you like, but here are some predefined ones:
 
 * link
 
-  Specifies a link to another page. This is used to generate a html
-  <link> tag, and also as a way to make the wiki treat one page as
-  linking to another without displaying a user-visible link. The latter 
-  can be useful when using links to categorise pages. A html link tag
-  would look like this:
+  Specifies a link to another page. This can be used as a way to make the
+  wiki treat one page as linking to another without displaying a user-visible
+  [[WikiLink]]:
+
+	\[[meta link=otherpage]]
 
-	\[[meta link="foo.css" rel="stylesheet" type="text/css"]]
+  It can also be used to insert a html <link> tag. For example:
 
-  A non-user-visible [[WikiLink]] would instead look like this:
+  	\[[meta link="http://joeyh.myopenid.com/" rel="openid.delegate"]]
 
-	\[[meta link=otherpage]]
+  However, this latter syntax won't be allowed if the [[htmlscrubber]] is
+  enabled, since it can be used to insert unsafe content.
 
 * title
 
@@ -53,9 +57,24 @@ You can use any field names you like, but here are some predefined ones:
   Specifies the creation date of the page. The date can be entered in
   nearly any format, since it's parsed by [[cpan TimeDate]].
 
-If the field is not treated specially (as the link and title fields are),
-the metadata will be written to the generated html page as a <meta>
-header.
+* stylesheet
 
-The field value is treated as HTML entity-escaped text, so you can include
-a quote in the text by writing `"` and so on.
+  Adds a stylesheet to a page. The stylesheet is treated as a wiki link to
+  a `.css` file in the wiki, so it cannot be used to add links to external
+  stylesheets. Example:
+
+	\[[meta stylesheet=somestyle rel="alternate stylesheet"
+	title="somestyle"]]
+
+* openid
+
+  Adds html <link> tags to perform OpenID delegation to an external
+  OpenID server. This lets you use an ikiwiki page as your OpenID. Example:
+
+  	\\[[meta openid="http://joeyh.myopenid.com/"
+	server="http://www.myopenid.com/server"]]
+
+If the field is not one of the above predefined fields, the metadata will be
+written to the generated html page as a <meta> header. However, this
+won't be allowed if the [[htmlscrubber]] is enabled, since it can be used to
+insert unsafe content.