Editora 0.20.0. Archived, so links from that release keep working. Read the 0.23.0 page →
View: Toggle Autocomplete — Words (Prose)
view.toggleAutocompleteProse Turn dictionary-word autocomplete (prose) on or off.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for View: Toggle Autocomplete — Words (Prose), then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.