docs: better documentation of new rgw feature

Document rgw_extended_http_attrs config option.

Signed-off-by: Yehuda Sadeh <yehuda@inktank.com>

diff --git a/doc/radosgw/config-ref.rst b/doc/radosgw/config-ref.rst
index 6a7fa46e74382df2959153ee0c76f3220b6c750b..b8530b428cb824683d52b1b7688ada0dca3ed45e 100644 (file)
--- a/doc/radosgw/config-ref.rst
+++ b/doc/radosgw/config-ref.rst
@@ -230,7 +230,7 @@ set automatically.
 :Default: ``5ul << 20``
 
 ``rgw extended http attrs``
-:Description: Add new set of attributes that could be set on an object
+:Description: Add new set of attributes that could be set on an object. These extra attributes can be set through HTTP header fields when putting the objects. If set, these attributes will return as HTTP fields when doing GET/HEAD on the object.
 :Type: String
 :Default: N/A
 :Example: "content_foo, content_bar"