Update README.md.
* Added build/test instructions.
* Added contribution ideas.
* Added udp demo description and example output.
Issue: #1
Add Network.Kontiki.Types documentation.
* Added Module documentation.
* Added documentation sections.
* Removed spurious whitespace.
* Documented messages as per paper.
* Added sections and anchors to hopefully improve readability.
* Reordered the definitions to match the export list.
Issue: #1
Enable test coverage with hpc.
* Updated README.md with appropriate instructions.
Issue: #1