Add month and day to archive list

src/pages/archive.js

@@ -14,7 +14,7 @@ export default function Archive({ data }) {
 		const postListItems = yg.edges.map(({node}) => {
 			return (
 				<li>
-					<a href={node.fields.slug}>{node.frontmatter.date} {node.frontmatter.title}</a>
+					<a href={node.fields.slug}>{node.frontmatter.date} - {node.frontmatter.title}</a>
 				</li>
 			);
 		});