improve attachment example

diff --git a/doc/ikiwiki/pagespec/attachment.mdwn b/doc/ikiwiki/pagespec/attachment.mdwn
index 419f00ee4284f3a0bae6305e290a1ef8d5cef95a..fa2bc58679afd9044bdab4c4b8bf1a5b16702770 100644 (file)
--- a/doc/ikiwiki/pagespec/attachment.mdwn
+++ b/doc/ikiwiki/pagespec/attachment.mdwn
@@ -7,11 +7,12 @@ If attachments are enabled, the wiki admin can control what types of
 attachments will be accepted, via the `allowed_attachments`
 configuration setting.
 
-For example, to limit arbitrary files to 50 kilobytes, but allow
-larger mp3 files to be uploaded by joey into a specific directory, and
-check all attachments for viruses, something like this could be used:
+For example, to limit most users to uploading small images, and nothing else,
+while allowing larger mp3 files to be uploaded by joey into a specific
+directory, and check all attachments for viruses, something like this could be
+used:
   
-       virusfree() and ((user(joey) and podcast/*.mp3 and mimetype(audio/mpeg) and maxsize(15mb)) or (!ispage() and maxsize(50kb)))
+       virusfree() and ((user(joey) and podcast/*.mp3 and mimetype(audio/mpeg) and maxsize(15mb)) or (mimetype(image/*) and maxsize(50kb)))
 
 The regular [[ikiwiki/PageSpec]] syntax is expanded with the following
 additional tests: