anchor.diff:  Your First Test
   ^^^^^^^^^^^^^^^
   
  -We will start demonstration the use of *CGreen* by writing some tests
  +We will start demonstrating the use of *Cgreen* by writing some tests for *Cgreen* itself
   to confirm that everything is working as it should. Let's start with a
   simple test module with no tests, called `first_test.c`...
   
  
positive.code: Writing Basic Tests
  ~~~~~~~~~~~~~~~~~~~
  
  *Cgreen* tests are simply C, or C++, functions with no parameters and
  no return value. To signal that they actually are tests we mark them
  with the `Ensure` macro. An example might be...
  
  [source,c]
  -----------------------------
  
negative.code: | `is_false` | evaluates to false
  | `is_null` | equals null
  | `is_non_null` | is a non null value
  | `is_not_null` | d:o
  ||
  | `is_equal_to(value)` | '== value'
  | `is_not_equal_to(value)` | '!= value'
  