Fixup typo.

README

@@ -2,6 +2,6 @@ jDBI provides a convenience interface for SQL operations in Java. It is not
 intended as an abstraction layer, but rather a library which makes the common
 things easy and the hard things possible, to paraphrase Larry Wall.
 
-Documenation is at http://jdbi.org/
+Documentation is at http://jdbi.org/
 
 There is a mailing list at http://groups.google.com/group/jdbi