git mv *.hint -> README.md

There is one exception:

    $ find . -name '*.hint' -execdir git mv '{}' README.md \;
    git statufatal: destination exists, source=1992/albert/albert.hint, destination=1992/albert/README.md

Looking at the two files they differ quite a bit so I've not changed it.
I'll bring this up on GitHub.

1988/phillipps/README.md

@@ -0,0 +1,22 @@
+Least likely to compile successfully:
+
+	Ian Phillipps
+	Cambridge Consultants Ltd
+	Science Park
+	Milton Road
+	Cambridge CB4 4DW
+	England
+
+Compile and run without parameters.
+
+The program is smaller than even the 'compressed' form of its output,
+and thus represents a new departure in text compression standards.
+
+The judges thought that this program looked like what you would get
+by pounding on the keys of an old typewriter at random.
+
+Copyright (c) 1988, Landon Curt Noll & Larry Bassel.
+All Rights Reserved.  Permission for personal, educational or non-profit use is
+granted provided this this copyright and notice are included in its entirety
+and remains unaltered.  All other uses must receive prior permission in writing
+from both Landon Curt Noll and Larry Bassel.