Add docs to repo (#38)

docs/docs/intro.md

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+---
+slug: /
+id: intro
+---
+
+# Welcome to Constellation! 🎉
+
+Constellation is the first Confidential Kubernetes platform!
+Constellation leverages confidential computing to isolate entire Kubernetes clusters and all workloads from the rest of the cloud infrastructure.
+From the inside, it's a fully-featured, [certified](https://www.cncf.io/certification/software-conformance/), Kubernetes engine.
+From the outside, it's an end to end isolated, always encrypted stronghold. A Confidential Cloud in the public cloud.
+Constellation is open source and enterprise-ready, tailored for unleashing the power of confidential computing for all your workloads at scale.
+
+For a brief introduction to the Confidential Kubernetes concept, read the [introduction](overview/confidential-kubernetes.md).
+For more elaborate overviews of Constellation's, see the [architecture](architecture/overview.md) section.
+
+![Constellation](_media/product-overview.png)
+
+## Features
+
+Constellation's main features are:
+
+* The only cloud agnostic Confidential Kubernetes platform
+* Verifiable integrity and confidentiality protection of the entire Kubernetes cluster
+* High-available, enterprise-ready Kubernetes engine
+* Memory runtime encryption of all Kubernetes nodes
+* Network encryption for the node to node traffic. Including the pod network.
+* [Persistent volume](https://kubernetes.io/docs/concepts/storage/persistent-volumes/) encryption for block storage
+* Key management for transparent network and storage encryption
+* CC-optimized, fully measured, and integrity-protected node OS
+* Kubernetes node attestation
+* Dynamic cluster autoscaling with autonomous node attestation
+* Supply chain protection with [sigstore](https://www.sigstore.dev/)
+
+## Getting started
+
+Sounds great, how can I try this?
+
+Constellation can be [deployed](getting-started/install.md) in minutes to your favorite infrastructure provider :rocket:
+
+## Where does it fit
+
+Constellation is the Kubernetes platform for secure, confidential cloud computing.
+When moving workloads to the cloud most enterprises are facing the following challenges:
+
+* How to **prevent unauthorized access** from hackers, cloud administrators, or governments?
+* How to **ensure compliance** with privacy laws (e.g. GDPR) and industry-specific regulation (e.g. HIPAA)?
+* How to **implement cloud security at the root** -- without simply adding "yet another tool"?
+
+Constellation is designed to fundamentally change the playing field when it comes to cloud migration.
+By leveraging confidential computing hardware capabilities it solves these challenges at the root.