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/dale/README.md

@@ -0,0 +1,23 @@
+Best abuse of system calls:
+
+    	Paul Dale
+	University of Queensland
+	Computer Science Dept
+	Dept of Computer Science
+	Uni of Qld, 4067
+	Australia
+
+Try: dale hello world
+     dale these files are in this directory: *
+
+This entry has a very twisted flow of control via recursion, iteration 
+and multi-processing.  Try to understand what is being done with the
+system calls.
+
+NOTE: This program assumes the ascii character set is being used.
+
+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.