fix docs about content_type and serialization

if serializer is None and content_type is not specified, then serialization will happen (see messaging.Producer:_prepare)

1 files changed, 2 insertions, 2 deletions

diff --git a/docs/userguide/serialization.rst b/docs/userguide/serialization.rst
index 9f325575..72970489 100644
--- a/docs/userguide/serialization.rst
+++ b/docs/userguide/serialization.rst
@@ -106,10 +106,10 @@ Sending raw data without Serialization
 ======================================
 
 In some cases, you don't need your message data to be serialized. If you
-pass in a plain string or Unicode object as your message, then `Kombu` will
+pass in a plain string or Unicode object as your message and a custom `content_type`, then `Kombu` will
 not waste cycles serializing/deserializing the data.
 
-You can optionally specify a `content_type` and `content_encoding`
+You can optionally specify a `content_encoding`
 for the raw data::
 
     >>> with open("~/my_picture.jpg", "rb") as fh: