neovim: Enable spell checking in tex and mkdn

nvim/.config/nvim/init.vim

@@ -60,6 +60,9 @@ end
 EOF
 autocmd TermOpen term://* lua set_terminal_keymaps()
 
+" Spell checking
+autocmd FileType tex,markdown setlocal spell spelllang=en_us
+
 " Editor integration
 let $GIT_EDITOR = 'nvr -cc split --remote-wait --servername ' . v:servername
 autocmd FileType gitcommit,gitrebase,gitconfig set bufhidden=delete