what is markdownit in nuxt code example

Example: Nuxt js '@nuxtjs/markdownit'

export default {
  async asyncData({ $axios, $md }) {

    //I am also using axios to get the content from the Strapi API.
    const home = await $axios.$get("/home-page");
    //This is where I use $md to parse the markdown for the example in the photos.
    const content = $md.render(home.content);

    const apiRoute = 'http://localhost:1337';

    const heroImageUrl = apiRoute + home.hero_image.url;

    const posts = await $axios.$get("/posts?_limit=4");

    const projects = await $axios.$get("/projects?_limit=2");

    const project = projects[0];
    const projectImage = apiRoute + project.main_image.url;
    const projectDescription = $md.render(project.description)

    const secondProject = projects[1];
    const secondProjectImage = apiRoute + secondProject.main_image.url;
    const secondProjectDescription = $md.render(secondProject.description)


    return {
      home,
      heroImageUrl,
      posts,
      content,
      project,
      projectImage,
      projectDescription,
      secondProject,
      secondProjectImage,
      secondProjectDescription };
  },
};