draft-snell-link-method: Add example using fragment identifiers

Hi James,

would it be possible to add an example that uses fragment identifiers to draft-snell-link-method? As a [recent discussion in the Hydra W3C Community Group](http://lists.w3.org/Archives/Public/public-hydra/2014Oct/0100.html) showed, people struggle to see that this is possible.

I had an example like like this in mind:

     LINK /alice HTTP/1.1
     Host: example.org
     Link: <http://example.com/bob#me>; rel="http://schema.org/knows"; anchor="#me"

Which effectively creates this triple

     <http://example.org/alice#me> <http://schema.org/knows> <http://example.com/bob#me> .

Thanks