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.

1992/marangon/README.md

@@ -0,0 +1,40 @@
+Best Game:
+
+	Marangoni Andrea
+	Department of Computer Science at Milano
+	Via Pausula, 72
+	62014 Corridonia (MC)
+	Italy
+
+
+Judges' comments:
+
+    Make and run.
+
+    The object is to refill the table with 5's, by incrementing
+    or decrementing numbers as needed.  It is the side effects
+    that get you into trouble.  If you are not careful, you may
+    find things "at 6's and 7's".  :-)
+
+    NOTE: Some compilers have had trouble optimizing this entry.
+
+    NOTE: Some systems need to compile with -ltermcap as well as -lcurses.
+
+    NOTE: The original winning source marangon.orig.c assumed that
+	  exit returned a value which cause problems for some
+	  systems where exit returned a void.  The file marangon.c
+	  avoids this problem.
+
+
+Selected notes from the author:
+
+    It starts off by creating a table with number 5 in all places.  The
+    CPU melts the numbers and you must return them in original state.
+    When you increase a number, all the other eight numbers next to it
+    decrease and vice-versa.
+
+Copyright (c) 1992, 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.