Minor updates to 1984/mullender

Minor corrections in the README.md and bugs.md.

The README.md was not checked for other issues at this time. When that
happens 1984 should be complete in every way except that 1984/README.md
has to be checked again but that will happen after the other entries of
all the other years are done.

bugs.md

@@ -469,7 +469,7 @@ Cody added and fixed the [gentab.c](1984/mullender/gentab.c) which is from the
 author's (or one of them, Mullender) remarks found by Cody. Cody fixed this to
 compile and work (as best as he can determine: he has no VAX-11 or PDP-11 or
 emulator to test it) but running the code on the binary itself produces a
-`short[]` that can compile in modern systems.
+`short[]` that can compile in modern systems though it'll not work.
 
 
 # 1985