Bump script ver and refactor md metadata gen

Signed-off-by: Paul W. <lambdapaul@protonmail.com>

lib/read-markdown.ts

@@ -0,0 +1,9 @@
+import { readFile } from 'fs/promises';
+import path from 'path';
+
+export default async function readMarkdown(directory: string, slug: string, withoutTitle: boolean = false): Promise<string> {
+    const content = await readFile(path.join(process.cwd(), directory, `${slug}.md`), 'utf-8');
+    if (withoutTitle)
+        return content.substring(content.indexOf('\n') + 1, content.length);
+    return content;
+}