text: //BlogPostListng.js
  
  import React from 'react';
  import {Link} from 'gatsby';
  import styles from './BlogPostListing.module.css';
  
  export default function BlogPostListing({slug, title, date, excerpt})
  {
      return (
          <article className = {styles.blogpostlisting}>
              <h2><Link to = {slug}>{title}</Link></h2>
              <h3>{date}</h3>
              <p>{excerpt}</p>
          </article>
      );
  }
  