EXERCISE_README_INSERT.md in trackler-2.1.0.54

- old
+ new

@@ -20,10 +20,5 @@
 
 To include color from the command line:
 
     ruby -r minitest/pride hello_world_test.rb
 
-The test files may have the execution bit set so you may also be able to
-run it like this:
-
-    ./hello_world_test.rb
-