anchor.diff:  
   In this section we look at an example that demonstrates how the type provider works 
   on a simple document that lists authors that write about a specific topic. The 
  -sample document [`docs/Writers.xml`](docs/Writers.xml) looks as follows:
  +sample document [`docs/Writers.xml`](../docs/Writers.xml) looks as follows:
   
       <authors topic="Philosophy of Science">
         <author name="Paul Feyerabend" born="1924" />
  
positive.code: 
  Another interesting case is when there are multiple nodes that contain just a 
  primitive value. The following example shows what happens when the root node
  contains multiple `<value>` nodes (not tht if we leave out the parameter to the 
  `Parse` method, the same text used for the schema will be used as the runtime value)
  *)
  
  
negative.code: element of the same name (for example `<author>` never contained another `<author>`).
  However, when we work with documents such as XHTML files, this can often be the case.
  Consider for example, the following sample (a simplified version of 
  [`docs/HtmlBody.xml`](../docs/HtmlBody.xml)):
  
      <div id="root">
        <span>Main text</span>
  