post card fragment

src/templates.rs

@@ -135,3 +135,9 @@ You're receiving this because you subscribed to the zero2prod newsletter."#,
         )
     }
 }
+
+#[derive(Template)]
+#[template(path = "../templates/post_card_fragment.html")]
+pub struct PostCardTemplate<'a> {
+    pub post: &'a PostEntry,
+}