README.md in trackler-2.2.1.104

- old
+ new

@@ -10,11 +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.
 
 If you're wondering why Pluto didn't make the cut, go watch [this
 youtube video](http://www.youtube.com/watch?v=Z_2gbGXzFbs).
 
 ## Setup
@@ -24,15 +24,21 @@
 - Create an Xcode project with a test target which will run the tests.
 - Use the ruby gem `objc` as a test runner utility.
 
 Both are described in more detail here: http://exercism.io/languages/objective-c
 
-
 ### Submitting Exercises
 
 When submitting an exercise, make sure your solution file is in the same directory as the test code.
 
-For example, if you're submitting `Bob.m` for the Bob exercise, the submit command would be something like `exercism submit <path_to_exercism_dir>/objective-c/bob/Bob.m`.
+The submit command will look something like:
+
+```shell
+exercism submit <path-to-exercism-workspace>/objective-c/space-age/SpaceAge.m
+```
+
+You can find the Exercism workspace by running `exercism debug` and looking for the line beginning
+with Workspace.
 
 ## Source
 
 Partially inspired by Chapter 1 in Chris Pine's online Learn to Program tutorial. [http://pine.fm/LearnToProgram/?Chapter=01](http://pine.fm/LearnToProgram/?Chapter=01)
 