Many README.md fixes and some Makefile fixes

The years 1984, 1985 and 1986 have had all winning entry README.md files
updated. This includes formatting, adding author's comments (which in
these years means nothing but still have the section there to indicate
that there were no comments) and possibly other things.

I have updated some - not all - of the 1987 winning entry README.md
files. I have to do other things now but I want these committed. I will
work on the other README.md files another time.

1984/mullender/README.md

@@ -12,9 +12,10 @@ Robbert van Renesse
 
 	./mullender
 
+NOTE: This entry is likely to fail and/or dump core on modern computers.
+
 ## Judges' comments:
 
-NOTE: This entry is likely to fail and/or dump core on modern computers.
 
 Without question, this C program is the one of the most obfuscated
 C program that has ever been received!  Like all great contest
@@ -41,6 +42,11 @@ makes direct calls to the write() Unix system call to produce a
 message on the screen.  Can you guess what is printed?  We knew you
 couldn't!  :-)
 
+## Author's comments:
+
+No comments were provided by the author.
+
+
 Copyright (c) 1984, Landon Curt Noll.
 All Rights Reserved.  Permission for personal, educational or non-profit use is
 granted provided this this copyright and notice are included in its entirety