Updated doc. Closes gh-15

diff --git a/README.rst b/README.rst
index 4a4a9d96b691faf9813ad172064f762040fbf3f0..291490d40379e8348b98b8eea1d2dca50f7c983b 100644 (file)
--- a/README.rst
+++ b/README.rst
@@ -266,7 +266,9 @@ Further documentation at `Twitter development resources`_:
       TWITTER_CONSUMER_KEY
       TWITTER_CONSUMER_SECRET
 
-- You don't need to specify the URL callback
+- You need to specify an URL callback or the application will be marked as
+  Client type instead of the Browser. Almost any dummy value will work if
+  you plan some test.
 
 
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