Added content to the README

README

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+This script will intercept all messages (quit, part, channel, and private)
+searching for URLs. If the URL is a "short" URL (tinyurl, t.co, bit,ly, etc)
+it will be expanded into the real URL. The expansion is done by the fine folks
+at longurl.org.
+
+Configuration options for this script include:
+	expand_url_privmsgs	- A boolean which toggles whether private
+				messages are searched or not.
+	expand_url_white	- A string of whitespace delimited
+				channels in which expanded is to take place.
+				For example, '#news &twitter #shorturls'
+				If this variable is left undefined, all
+				channels are searched for shortened URLs.
+
+I'm not sure that expand_url_white is really needed.
+
+If you find any bugs, having any suggestions, or just want to chat,
+hit me up!
+
+Have fun, and hope you like it.