README.md in trackler-2.2.1.44

- old
+ new

@@ -10,10 +10,11 @@
    - Saturn: orbital period 29.447498 Earth years
    - Uranus: orbital period 84.016846 Earth years
    - Neptune: orbital period 164.79132 Earth years
 
 So if you were told someone were 1,000,000,000 seconds old, you should
-be able to say that they're 31 Earth-years old.
+be able to say that they're 31.69 Earth-years old. Round all ages to
+the nearest hundredth of a year.
 
 If you're wondering why Pluto didn't make the cut, go watch [this
 youtube video](http://www.youtube.com/watch?v=Z_2gbGXzFbs).
 
 ## Resources