Fixed spelling mistake (report by Gokhan Sevinc)

git-svn-id: https://flot.googlecode.com/svn/trunk@121 1e0a6537-2640-0410-bfb7-f154510ff394

API.txt

@@ -376,7 +376,7 @@ specifiers are supported
 You can customize the month names with the "monthNames" option. For
 instance, for Danish you might specify:
 
-  monthName: ["jan", "feb", "mar", "apr", "maj", "jun", "jul", "aug", "sep", "okt", "nov", "dec"]
+  monthNames: ["jan", "feb", "mar", "apr", "maj", "jun", "jul", "aug", "sep", "okt", "nov", "dec"]
 
 The format string and month names are used by a very simple built-in
 format function that takes a date object, a format string (and