exercism
Synchronise with problem specifications
Synchronised docs and metadata with the problem specifications using configlet sync, and updated links in the track README.md.
~I excluded the Queen Attack exercise, because the updated instructions are inconsistent with the current implementation of the exercise in this track.~ I appended track-specific instructions for the Queen Attack exercise, to explain that it is implemented using one-indexed coordinates.
I have resynchronised with the latest version of the problem specifications. Conflicts were the result of some exercises having been synchronised to newer versions since this PR was created, so resynchronising has resolved them all.
I have not synchronised tests. I will do that for each affected exercise separately, to make sure that the example solutions pass the new test cases.