Dear ocaml.org webmaster,
The OCaml text file manual is served with no encoding. It therefore displays some funky characters in my browsers (Firefox, Chromium, Android).
https://ocaml.org/manual/5.3/ocaml-5.3-refman.txt
To correct this, just add the content header: Content-Type: text/plain; charset=utf-8
(In nginx, charset UTF-8;)