Add the LibGuides sample XML file for testing
Add an example to the spec for a mapped Resource
Update the sample libguides XML file for validity and additonal category examples
Now that we have a sample LibGuides XML file, we can use it to code the reader.
The reader now
- gets the guides from their proper path, namely "LIBGUIDES/GUIDES/GUIDE"
- only reads guides that have been "Published"
- maps the following fields for a guide
  - identifier: the guide's URL
  - title: the guide's NAME
  - create: the guide's OWNER's NAME
  - type: "Research Guide"
  - available: the guide's FRIENDLY_URL or the guide's URL if there isn't a FRIENDLY_URL
  - description: the guide's DESCRIPTION
  - date: the guide's LAST_UPDATE date
Map a guide's categories to subjects
Add the actual LibGuides XML file after running it through xmllint --recover to remove all the invalid XML