[libgdata] core: Expand the GDataAccessRule documentation a little

[Philip Withnall <pwithnall src gnome org>]

commit 98954c4a40681b0fef38197838be975eb931cc29
Author: Philip Withnall <philip tecnocode co uk>
Date:   Sun Oct 17 12:28:40 2010 +0100

    core: Expand the GDataAccessRule documentation a little

 gdata/gdata-access-rule.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gdata/gdata-access-rule.c b/gdata/gdata-access-rule.c
index cd40164..d6a67f6 100644
--- a/gdata/gdata-access-rule.c
+++ b/gdata/gdata-access-rule.c
@@ -27,6 +27,9 @@
  * #GDataAccessRule is a subclass of #GDataEntry to represent a generic access rule from an access control list (ACL).
  * It is returned by the ACL methods implemented in the #GDataAccessHandler interface.
  *
+ * Access rules should be inserted to the %GDATA_LINK_ACCESS_CONTROL_LIST URI of the feed or entry they should be applied to. This will return a
+ * %GDATA_SERVICE_ERROR_CONFLICT error if a rule already exists on that feed or entry for that scope type and value.
+ *
  * Since: 0.3.0
  **/