Added a landing page to demonstrate the concept

Signed-off-by: Gunasekhar Matamalam <gunasekhar.matamalam@suse.com>

src/pages/index.module.css

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+/**
+ * CSS files with the .module.css suffix will be treated as CSS modules
+ * and scoped locally.
+ */
+
+.heroBanner {
+  padding: 4rem 0;
+  text-align: center;
+  position: relative;
+  overflow: hidden;
+}
+
+@media screen and (max-width: 996px) {
+  .heroBanner {
+    padding: 2rem;
+  }
+}
+
+.buttons {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}

src/pages/poc-index.tsx

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+import React from 'react';
+import clsx from 'clsx';
+import Link from '@docusaurus/Link';
+import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
+import Layout from '@theme/Layout';
+// import HomepageFeatures from '@site/src/components/HomepageFeatures';
+
+import styles from './index.module.css';
+
+function HomepageHeader() {
+  const {siteConfig} = useDocusaurusContext();
+  return (
+    <header className={clsx('hero hero--primary', styles.heroBanner)}>
+      <div className="container">
+        <h1 className="hero__title">{siteConfig.title}</h1>
+        <p className="hero__subtitle">{siteConfig.tagline}</p>
+        <div className={styles.buttons}>
+          <Link
+            className="button button--secondary button--lg"
+            to="/intro">
+            Full Documentation 📖
+          </Link>
+        </div>
+      </div>
+    </header>
+  );
+}
+
+export default function Home(): JSX.Element {
+  const {siteConfig} = useDocusaurusContext();
+  return (
+    <Layout
+      title={`Rancher Docs`}
+      description="Guides, Tutorials, References about Rancher Kubernetes Management Platform">
+      <HomepageHeader />
+      <main>
+        <HomepageFeatures />
+      </main>
+    </Layout>
+  );
+}