doc: cygwin64 is also supported
doc: cygwin64 is also supported

eliberis/ocaml,msprotz/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,eliberis/ocaml,eliberis/ocaml,gerdstolpmann/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,eliberis/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,yunxing/ocaml,eliberis/ocaml,msprotz/ocaml,yunxing/ocaml,msprotz/ocaml,yunxing/ocaml