     for testing. Defaults to `test/test_helper.exs`.
 
   * `:test_coverage` - the directory to include test coverage results.
-    Defaults to nil.
+    Defaults to `nil`.
 
   """
 


  ## Configuration

  * `:test_paths` - path containing tests.
    Defaults to `["test"]`.

  * `:test_pattern` - a pattern to load test files.


  ## Command line options

  * `--trace` - run tests with detailed reporting. Automatically sets `max-cases` to 1;
  * `--max-cases` - set the maximum number of cases running async;
  * `--cover` - the directory to include coverage results;
  * `--force` - forces compilation regardless of module times;
