Allow markdown in post descriptions

eleventy.config.js

@@ -7,6 +7,7 @@ const mdDefList = require("markdown-it-deflist");
 const mdToc = require("markdown-it-table-of-contents");
 const mdAnchor = require("markdown-it-anchor");
 const nunjucksDate = require("nunjucks-date");
+const markdownIt = require("markdown-it");
 
 function addEleventyPlugins(eleventyConfig) {
 	eleventyConfig.addPlugin(eleventyNavigationPlugin);
@@ -30,6 +31,9 @@ function configureMarkdown(eleventyConfig) {
 }
 
 function addFilters(eleventyConfig) {
+	let md = new markdownIt();
+
+	eleventyConfig.addFilter("renderMarkdown", (mdString) => md.render(mdString));
 	eleventyConfig.addFilter("log", (value) => console.log(value));
 	eleventyConfig.addFilter("date", nunjucksDate);
 	eleventyConfig.addFilter("IsNotPage", (collection, url) =>

src/_includes/posts-list.njk

@@ -29,7 +29,7 @@
 					{% endfor %}
 				</div>
 			</dl>
-			<p>{{ post.data.description }}</p>
+			<p>{{ post.data.description | renderMarkdown | safe }}</p>
 		</section>
 	{% endfor %}
 {% else %}