+.SH URL FORMAT
+The placeholders %city% and %st% in the furl URL and %id% in the murl URL
+will be replaced with the city, st and id definitions respectively. If the
+placeholder has all letters lowercased, the replacement will be forced to
+all lowercase. If the placeholder has all letters uppercased, the
+replacement will be forced to all uppercase. If the placeholder has its
+first letter uppercased and the remainder lowercased, then all words in the
+replacement will start with an uppercase letter and the rest will be
+lowercase. If the placeholder has its last letter uppercased and the
+remainder lowercased, then case will be preserved in the replacement. Also,
+after replacement, any spaces in the resulting URL will be converted to
+underscore characters prior to use.