I write articles and docs using Vim. It’s convenient when the editor can check spelling on the fly,
so I can fix mistakes as soon as possible. Sometimes I use different languages in one file and I
want the editor to find spelling issues for all languages in it. It’s possible to set multiple
languages for spell check in Vim with a command like :set spelllang=en_us,de_de, so the editor
will use several dictionaries. I prefer to underline incorrect works with :hi SpellBad cterm=underline.