document that checkcontent behaves differently for comments

diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index b6d0611dc9bf72ea5c208f60eac5c5bd970acc18..7480a61489f86076206500a357cc3342362a1b2a 100644 (file)
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -531,6 +531,10 @@ should return a message stating what the problem is, or a function
 that can be run to perform whatever action is necessary to allow the user
 to post the content.
 
 that can be run to perform whatever action is necessary to allow the user
 to post the content.
 

+If the hook is ran on a comment, it will be put in the moderation queue if
+anything but `undef` is returned. The function or error message will not
+be ran or displayed.
+

 ### <a name="editcontent">editcontent</a>
 
        hook(type => "editcontent", id => "foo", call => \&editcontent);
 ### <a name="editcontent">editcontent</a>
 
        hook(type => "editcontent", id => "foo", call => \&editcontent);