adding quickstart to docs

docs/docs/quickstart.md

@@ -0,0 +1,25 @@
+---
+sidebar_position: 1
+title: Quick Start Guide
+---
+
+This guide will help you quickly launch Rubra with default options. The [installation section](./category/installation) covers in greater detail how Rubra can be set up.
+
+
+## Prerequisites
+* M-series Mac or Linux with GPU
+* 16 GB Ram
+* 10 GB Disk Space
+* [Docker](https://docs.docker.com/get-docker/) and `docker compose`
+
+## Install Script
+
+Rubra provides a 1-command installation script. Run the following:
+
+```bash
+curl -sfL https://raw.githubusercontent.com/acorn-io/rubra/main/quickstart.sh | sh -s -- start
+```
+
+Once the installation script is complete, the Rubra UI will be accessible at http://localhost:8501
+
+Enjoy! Start chatting with the Welcome Assistant and ask it a question that requires a web browser. Learn more about how you can [use Rubra here](/category/using-rubra).