feat: add giscus (unfinished)

src/pages/posts/[...slug].astro

@@ -11,6 +11,7 @@ import License from "@components/misc/License.astro";
 import {licenseConfig} from "src/config";
 import Markdown from "@components/misc/Markdown.astro";
 import path from "path";
+import Comment from "@components/Comment.astro";
 
 export async function getStaticPaths() {
     const blogEntries = await getCollection('posts', ({ data }) => {
@@ -109,6 +110,9 @@ const { remarkPluginFrontmatter } = await entry.render();
         </a>
     </div>
 
+    <!-- Comment -->
+    <Comment postId={entry.slug}></Comment>
+
 </MainGridLayout>
 
 <style is:global>