Amended readme to reflect new functionality: bot will respond to dire…

…ct messages with a quotation.

README.rst

@@ -3,7 +3,8 @@ TalkBackBot
 
 Are you tired of "That's what she said" jokes? Then this bot is for you!
 It will join a specified channel and respond to the configured trigger phrases
-with what she really said, i.e. a quotation from a notable woman.
+with what she really said, i.e. a quotation from a notable woman. It will also
+respond to any direct message with a quotation.
 
 Many quotes taken from this excellent resource:
 http://womenshistory.about.com/library/qu/blqulist.htm