How to run nunjucks file through prettier?

Question

webstorm

There is an index.njk file which is essentially the same html only with a different file extension. How can I format the code with prettier in such files?

Tried:

overrides:
  - files: "*.njk"
    options:
      parser: "html"

does not plow.

Answer 1

Oh .. actually

overrides:
  - files: "*.njk"
    options:
      parser: "html"

works if run through the command line, built-in webstorm just does not want to work with it.
But it doesn't matter, the nunjucks syntax messes up well, it works well with html.
For myself, the question is closed until adequate support for nunjucks appears in prettier, running it through the html parser does not make much sense, alas.