README.md in trackler-2.2.1.104

- old
+ new

@@ -15,15 +15,21 @@
 - 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/nth-prime/NthPrime.m
+```
+
+You can find the Exercism workspace by running `exercism debug` and looking for the line beginning
+with Workspace.
 
 ## Source
 
 A variation on Problem 7 at Project Euler [http://projecteuler.net/problem=7](http://projecteuler.net/problem=7)
 