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.

1989/jar.1/README.md

@@ -0,0 +1,40 @@
+Strangest abuse of the rules:
+
+	Jari Arkko
+	Laboratory of Information Processing Science
+	Helsinki University of Technology
+	Otakaari 1
+	02150 Espoo
+	Finland
+
+Judges notes:
+
+	On many systems the compiler will not allow you to send the
+	object file to /dev/tty.  The author suggested:
+
+		cc -c -o /dev/tty jar.1.c
+
+	On systems that have symbolic links, we suggest:
+
+		ln -s /dev/tty jar.1.o
+		cc -c jar.1.c
+	
+	if your system has symbolic links.  The shell script run
+	by the makefile simply cats the .o file to the terminal
+	which can be used as a last resort.
+
+	Abuse of the rules winners usually result in a change of the
+	rules.  Starting in 1990, compiling entries must result an
+	regular file which can be executed.
+
+Selected notes from the author:
+
+	This program is (supposedly) the smallest C program able to
+	print "Hello world.". The compilation itself produces the
+	desired printout and the program need not be actually run.
+
+Copyright (c) 1989, 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.