really fixed the typo

gitcheng · gitcheng · commit 1451a8029692 · 2015-01-24T20:21:48.000-08:00
diff --git a/_posts/2015-01-24-golden-ratio-and-fibonacci-numbers.md b/_posts/2015-01-24-golden-ratio-and-fibonacci-numbers.md
@@ -120,7 +120,7 @@ cut it anymore.
 
 It can be shown that to cut this rectangular forever, the only ratio
 you can start with is the golden ratio. If you start with a ratio of two
-adjacent Fibonacci numbers (can be very close to the goden ratio but not
+adjacent Fibonacci numbers (can be very close to the golden ratio but not
 exactly), you will end up with [a square (or two)](http://www.mathsisfun.com/numbers/images/fibonacci-spiral.gif),
 that is, the ratio of the sides is $$a_2/a_1$$.
 
