(Changes from GRUB Legacy): Link to "Environment block" section for
details of limitations.
(Simple configuration): Likewise. Link to documentation of gfxmode
and gfxpayload variables from GRUB_GFXMODE and GRUB_GFXPAYLOAD
respectively.
(Shell-like scripting): Note that normal variables are stored in the
environment.
(gettext): Link to documentation of lang and locale_dir.
(list_env): New section.
(load_env): New section.
(save_env): New section.
(Reporting bugs): Fix typo.
abf042006e