Markdown documentation files have some issues:

README.md:

• link from "System Requirements", item 4 to JBDS and Eclipse section does not work
• "Maven Profiles" section contains some profiles that are not present in the parent pom. Profiles other than default and non-maven should be removed and functional-tests should be added.
• mention of complex-dependencies profile should also be removed from the "Verify the Quickstarts Build with One Command" section

CONTRIBUTING.md:

• link to developer.github.io does not work

RELEASE_PROCEDURE.md

• nonexistent profiles are mentioned here, too
• link in "Publishing builds to Maven" section does not work