add French dictionary to vim; see below for usage

usage:

    :set spell spelllang=fr

installation instructions:

    - download dictionary from http://archive.services.openoffice.org/pub/mirror/OpenOffice.org/contrib/dictionaries/
    - unzip fr_FR-1990_1-3-2.zip
    - launch vi
    - :mkspell fr fr_FR-1990
    - :q
    - cp fr.utf-8.spl ~/.vim/spell/

reference: http://henry.precheur.org/vim/create_spell_file_for_vim