Co-authored-by: Graham Christensen <graham@grahamc.com>
Both `make check` and `make && yath test` are now documented ways to run the test suite.
projects.xml and declarative-projects.xml were merged with xmllint, and then I ran that to convert files for i in *.xml; do pandoc -s -f docbook -t markdown $i -o ${i/xml/md}; done