README.md in xamarin-test-cloud-2.0.0.pre1 vs README.md in xamarin-test-cloud-2.0.0.pre2

@@ -8,11 +8,11 @@
 
 ### Testing
 
 ```
 $ bundle update
-$ rake test         # All tests.
-$ rake unit         # Unit tests.
-$ rake integration  # Integration tests.
-$ rake spec         # rspec tests
+$ bundle exec rake test         # All tests.
+$ bundle exec rake unit         # Unit tests.
+$ bundle exec rake integration  # Integration tests.
+$ bundle exec rake spec         # rspec tests
 ```