Document how we support non Linked data

[ColmDC]

Is your feature request related to a problem? Please describe.
We can now import and display data that has not been mapped into an rdf schema in our Mykomap. We need to document this new process.

Describe the solution you'd like
An easy to understand document that a developer could use to write the import script to load a data set that included data not destined to be turned into linked data, and how to configure a Mykomap to use and display that data. The document should be under source control as it will need updating as the process changes.

Additional context
A draft of the text can be found here