Try adding images to rss feed

src/pages/rss.xml.js

@@ -6,13 +6,37 @@ export async function GET(context) {
   const posts = await getCollection('blog');
   const projects = await getCollection('projects');
 
-  let unifiedItems = posts.map((post) => ({
+  let unifiedItems = posts.map((post) => {
+    let item = {
       ...post.data,
       link: `/blog/${post.id}/`,
-  })).concat(projects.map((project) => ({
+    };
+
+    if (post.data.heroImage) {
+      item.enclosure = {
+        url: post.data.heroImage.src,
+        length: post.data.heroImage.width * post.data.heroImage.height,
+        type: `image/${post.data.heroImage.format}`
+      }
+    }
+
+    return item;
+  }).concat(projects.map((project) => {
+    let item = {
       ...project.data,
-    link: `/projects/${project.id}/`
+      link: `/projects/${project.id}/`,
-  })));
+    };
+
+    if (project.heroImage) {
+      item.enclosure = {
+        url: project.data.heroImage.src,
+        length: project.data.heroImage.width * project.data.heroImage.height,
+        type: `image/${project.data.heroImage.format}`
+      }
+    }
+
+    return item;
+  }));
   unifiedItems = unifiedItems.sort((a, b) => b.pubDate - a.pubDate);
 
   return rss({