[#814,tutorial,docs][xl]: add initial version of the second tutorial, rename basic-example to learn-example, clean up learn-example

examples/learn-example/pages/[[...path]].tsx

@@ -0,0 +1,46 @@
+import { promises as fs } from 'fs';
+import path from 'path';
+import parse from '../lib/markdown';
+import DRD from '../components/DRD';
+
+export const getServerSideProps = async (context) => {
+  let pathToFile = 'index.md';
+  if (context.params.path) {
+    pathToFile = context.params.path.join('/') + '/index.md';
+  }
+
+  const indexFile = path.join(process.cwd(), '/content/' + pathToFile);
+  const readme = await fs.readFile(indexFile, 'utf8');
+  let { mdxSource, frontMatter } = await parse(readme, '.mdx');
+  return {
+    props: {
+      mdxSource,
+      frontMatter,
+    },
+  };
+};
+
+export default function DatasetPage({ mdxSource, frontMatter }) {
+  return (
+    <div className="prose mx-auto">
+      <header>
+        <div className="mb-6">
+          <>
+            <h1>{frontMatter.title}</h1>
+            {frontMatter.author && (
+              <div className="-mt-6">
+                <p className="opacity-60 pl-1">{frontMatter.author}</p>
+              </div>
+            )}
+            {frontMatter.description && (
+              <p className="description">{frontMatter.description}</p>
+            )}
+          </>
+        </div>
+      </header>
+      <main>
+        <DRD source={mdxSource} />
+      </main>
+    </div>
+  );
+}