[Suggestion] Add the ability to request a random word

[Logboy2000]

I currently use a separate 'random word' API and will run into issues where your API doesn't have one of their words and vice versa.

It would be highly appreciated if you could add an endpoint that returns a random word from your list so this is no longer an issue. e.g. (https://api.dictionaryapi.dev/api/v2/random/en)