Links in markdown headings, corrected date

astro.config.mjs

@@ -2,6 +2,9 @@ import { defineConfig } from 'astro/config';
 
 import compress from "astro-compress";
 import remarkUnwrapImages from 'remark-unwrap-images';
+import { rehypeHeadingIds } from '@astrojs/markdown-remark';
+import rehypeSlug from 'rehype-slug';
+import rehypeAutolinkHeadings from 'rehype-autolink-headings';
 
 // https://astro.build/config
 export default defineConfig({
@@ -12,5 +15,13 @@ export default defineConfig({
   markdown: {
     syntaxHighlight: "shiki",
     remarkPlugins: [remarkUnwrapImages],
+    rehypePlugins: [
+      rehypeSlug,
+      rehypeHeadingIds,
+      [
+        rehypeAutolinkHeadings,
+        { behavior: "append" },
+      ],
+    ],
   },
 });