🌱 update title and description to improve SEO for marketing (#1518)

🌱 add opengraph description for better seo

Author: aarsh21

docs/caph/01-getting-started/01-introduction.md

@@ -3,6 +3,8 @@ title: Introduction
 metatitle: What is the Cluster API Provider Hetzner and Compatible Versions
 sidebar: Introduction
 description: Cluster API Provider Hetzner automates the lifecycle and provisioning of Kubernetes clusters on cloud or bare metal.
+ogDescription: Hetzner's Cluster API automates Kubernetes lifecycle and setup.
+ogTitle: "Cluster API Hetzner: Versions"
 ---
 
 Welcome to the official documentation for the Cluster API Provider Hetzner (CAPH). If you are new to it, you can keep reading the Getting Started section, the Quickstart guide will walk you through your first cluster setup.

docs/caph/01-getting-started/02-quickstart/01-prerequisites.md

@@ -3,6 +3,8 @@ title: Prerequisites
 metatitle: Tools Needed to Work With Cluster API Provider Hetzner
 sidebar: Prerequisites
 description: Automate provisioning, upgrading, and operating Kubernetes clusters on Hetzner infrastructure with Cluster API for a production-ready setup.
+ogTitle: Tools for Cluster API Provider Hetzner.
+ogDescription: Automate Kubernetes on Hetzner with Cluster API production setup.
 ---
 
 This guide goes through all the necessary steps to create a cluster on Hetzner infrastructure (on HCloud).