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/robison/README.md

@@ -0,0 +1,51 @@
+Best minimal use of C:
+
+	Arch D. Robison
+	University of Illinois
+	1304 W. Springfield Ave.
+	Urbana, IL 
+	61801
+	USA
+
+Judges notes:
+
+	Sites with punch card facilities will be happy to note that
+	the source deck can be re-collated with an ASCII sort.
+
+	Note that this program uses only a small subset of the
+	constructs that the C language supports.
+
+Selected notes from the author:
+
+	This program is a handy picoAPL interpreter written in C--.  It
+	outputs the evaluation of an APL expression from standard
+	input.  Functions are limited to dyadic +,-,x, and unary -;
+	numerals must be binary.  Parentheses may be used for
+	grouping.  For example:
+
+		101x111-100
+
+	prints:
+
+		1111
+
+	That is 5x(7-4) is 15.  (APL groups from right to left.)
+	Extending it to the full APL language should be trivial.
+
+	The C-- language improves the C language by removing superfluous
+	and confusing features: arithmetic, logical operations, shifts,
+	relationals, address-of, and flow control.  In fact, the only 
+	expressions retained are function calls, indirection, array 
+	assignments, the ',' operator, and sizeof.  Despite these
+	restrictions, the C-- program does arithmetic on arbitrarily 
+	large binary numbers.
+
+	To obtain a C-- reference, simply rip out the irrelevant pages 
+	from your K&R C manual.  To obtain a C-- compiler, simply rip
+	out the irrelevant bytes from your cc compiler.
+
+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.