Hint on ranges added

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2719 dfc29bdd-3216-0410-991c-e03cc46cb475

media/ninja animation ranges.txt

@@ -32,3 +32,5 @@ Feel free to use however you like, commercial etc, credits are Appreciated as a
 Psionic
 
 http://www.psionic3d.co.uk
+
+Note for Irrlicht: Irrlicht uses a 0-based frame index. So subtract 1 from each of the loops!
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