Add basic blog example in the readme

examples/nextjs-blog/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# local env files
+.env*.local
+
+# vercel
+.vercel

examples/nextjs-blog/README.md

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+# MarkdownDB Next.js Blog Tutorial
+
+This tutorial guides you through creating a simple Next.js-based blog using MarkdownDB. MarkdownDB empowers you to treat markdown files as a database, simplifying content management and querying.
+
+## Step 1: Set Up a Next.js Project
+
+Begin by creating a Next.js project. If Next.js is not installed, execute the following command, and make sure to include Tailwind:
+
+```bash
+npx create-next-app nextjs-blog
+cd nextjs-blog
+```
+
+## Step 2: Create a Folder for Blog Posts
+
+Establish a folder to store your blog posts within your project. For instance:
+
+```bash
+mkdir src/content
+cd src/content
+```
+
+Inside the content folder, create two sample blog posts using markdown, such as:
+
+```bash
+- embracing-minimalism.md
+- remote-work-productivity.md
+```
+
+## Step 3: Index Markdown Files into SQLite Database
+
+After preparing markdown files, store their metadata in a database using the MarkdownDB CLI. Execute the following command:
+
+```bash
+npx mddb ./content
+```
+
+## Step 4: Move `.markdowndb` Folder with `files.json` to the src Directory
+
+## Step 5: Load Blog Posts Using MarkdownDB
+
+Edit `pages/index.js`. Use the following code snippet:
+
+**Component 1: BlogList**
+
+```jsx
+import fs from "fs";
+import Link from "next/link";
+import styles from "@/styles/Home.module.css";
+
+export default function Home({ posts }) {
+  return (
+    <>
+      <main className={styles.main}>
+        <div>
+          <h2>Blog Posts</h2>
+          <ul>
+            {posts.map((post) => (
+              <li>
+                <h3>{post.metadata.title}</h3>
+              </li>
+            ))}
+          </ul>
+        </div>
+      </main>
+    </>
+  );
+}
+
+export async function getStaticProps() {
+  const filePath = "src/.markdowndb/files.json";
+  const fileContent = fs.readFileSync(filePath, "utf-8");
+  const posts = JSON.parse(fileContent);
+
+  return {
+    props: {
+      posts,
+    },
+  };
+}
+```
+
+## Step 6: Run Your Next.js App
+
+Run your Next.js app to view your blog in action:
+
+```bash
+npm run dev
+```
+
+Visit http://localhost:3000/blog to see your blog posts listed.
+
+Congratulations! You've successfully created a simple Next.js blog using MarkdownDB. Explore more features and customize your blog as needed.
+
+**Flag:** While `mddb` may not offer significantly more than manual handling, it stands out as a straightforward, extensively tested, and lightweight library.
+
+**Additional Features:**
+
+- **Tag Querying:** Easily retrieve tags from all files, streamlining organization and categorization.
+- **Backward/Forward Links:** Establish links for enhanced file interconnectivity and navigation.
+- **Custom Field Calculation:** Automatically calculate custom fields based on file content, reducing manual effort.
+- **Schema Validation:** Ensure file adherence to a predefined schema for data integrity.

examples/nextjs-blog/jsconfig.json

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+{
+  "compilerOptions": {
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  }
+}

examples/nextjs-blog/next.config.js

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+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  reactStrictMode: true,
+}
+
+module.exports = nextConfig