All instructions can be found here.
<link rel="stylesheet" href="https://unpkg.com/dracula-prism/css/dracula-prism.css">
You can install with the command npm i dracula-prism` which comes ready with Prismjs installed.
If you're using Node or Webpack or Rollup or Browserify, etc., simply apply:
Receive updates about this theme and more about Dracula.
This theme wouldn't exist without these people. Wanna help too? Check the repository on GitHub.