feat(memo): added memo base

utils/md-toc.ts

@@ -0,0 +1,14 @@
+const slugify = (e: string) => encodeURIComponent(String(e).trim().toLowerCase().replace(/\s+/g, '-'))
+
+function toc(content: string) {
+  return content.split('\n').filter(s => s.startsWith('#')).map((s) => {
+    const [_, hashtags, title] = s.match(/^(#+) (.*)/) ?? [undefined, 0, '']
+    const level = Math.max((hashtags as string).length - 2, 0)
+
+    return `${'    '.repeat(level)}- [${title}](#${slugify(title as string)})`
+  })
+}
+
+export {
+  toc
+}