anchor.diff:      commands:
         - id: sem1
           # Particular instance of the command in the test. Only useful if the
  -        # command is listed multiple times in the test
  +        # command is listed multiple times in the test.
           index: 0
           points: 0
  -        # Override default command arguments
  +        # Override default command arguments.
           args: [arg1, arg2,...]
   ----
   
  
positive.code: ----
  
  Some OS/161 tests are composed of other tests, in which case the command output
  will reference an external command:
  
  [source,yaml]
  ----
  
negative.code: 
  `test161` is designed around two main tasks: running tests and submitting
  targets. Additionally, sub-commands exist for configuring test161 and
  listing existing tests. Running `test161` with no arguments will print usage
  information, and for a more detailed description of `test161` sub-commands,
  use `test161 help`.
  
  === Tests, Targets, and Tags
  
  The `test161` sub-commands often take one or more tests, targets, and tags as
  arguments. A _test_ consists of one or more OS/161 commands along with
  metadata, `sys161` configuration, and possibly some additional `test161` runtime
  configuration. Tests can optionally include _tags_, which allow related tests
  to be grouped and run together. _Targets_ consist of a set of tests that are run
  together, and allow point values to be assigned to each test.
  
  ==== Listing Tests, Targets, and Tags
  
  