Spell checking in Spacemacs
spell-checking layer provides 'on-the-fly' spell checking, highlighting incorrect spelling of words as you type.
SPC S is the spell check menu.
Spell check the current word
SPC S s RET is a quick way to fix the spelling of the current word as most of the time the correct spelling is at the top of the list.
SPC S s checks the current word under the cursor. A list of possible spellings displays in a popup. Use
C-k to navigate the spellings and
RET to select the spelling to use.
spell-checking layer to the layer list in
spell-checking layer uses the flyspell tool in Emacs and an external binary
Install an external spell checking binaries that is supported by flyspell: ispell, hunspell, aspell. On Unix systems this binary is probably installed already.