Try fixing 2011/richards + update README.md

This does not work with macOS but I'm not sure if this has to do with
macOS or the fact it's the Apple silicon chip. The fact it works in
linux makes it harder to figure out what the problem is. Still I tried
to change the protection of the mmap() call. Different values can
actually make it crash in linux as well but this does work. Of course
the fact it works with linux doesn't mean much since it already did work
with linux. This is a work in progress. Doing

    make CC=clang CSILENCE= CWARN="-Wall -Wextra -Weverything" clobber all

can give a lot of interesting warnings that might or might not be
relevant including one about alignment. In bugs.md I cited where it
appears to crash.

Format fixed the README.md.

2011/richards/Makefile

@@ -61,7 +61,7 @@ CDEFINE=
 
 # Include files that are needed to compile
 #
-CINCLUDE=
+CINCLUDE= -include stdlib.h -include string.h -include stdio.h -include ctype.h
 
 # Optimization
 #