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/spinellis/README.md

@@ -0,0 +1,36 @@
+Best abuse of the rules:
+
+    	Diomidis Spinellis (currently at Imperial College, London, England)
+	1 Myrsinis Str.
+	GR-145 62 Kifissia
+	GREECE
+
+How to compile:
+
+	/lib/cpp spinellis.c > spin.c
+
+and type the following text followed by an EOF ('^D'):
+
+	main()
+	{
+	    printf("Hello world\n");
+	}
+
+The author says:
+
+    This program can be configured to do almost everything.
+    The configuration is done during compile time by typing
+    in, C code, that one would like the program to perform.
+    A trivial example is given in the `how to compile' section
+    but the possibilities are clearly limited only by your
+    imagination and programming skills.
+
+FYI: We enjoyed this entry this year, however in the future programs 
+     must be able to be compiled from within a makefile without the
+     need of human intervention.
+
+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.