Update README.md

Author: krvital

README.md

@@ -1,2 +1,47 @@
-# WIP aidbox-sdk
-Aidbox SDK
+![](https://github.com/aidbox/aidbox-sdk/actions/workflows/build.yaml/badge.svg)
+
+# Aidbox SDK Generator
+
+A CLI tool to generate Aidbox SDKs for various programming languages from FHIR schema definitions.
+
+
+## Getting Started
+
+### Prerequisites
+
+- Ensure you have a working instance of Aibox to retrieve the FHIR Schemas.
+
+- Ensure that Aidbox security policies allow access to `/api/sdk/fhir-packages` endpoint. For a simple setup, you can add a client and configure basic authentication as described [here](https://docs.aidbox.app/modules-1/security-and-access-control/auth/basic-auth#register-client)
+- Use your Aidbox client's username and password to generate a token for the aidbox SDK generator using the following formula:
+  `base64(user:password)`
+
+### Installation
+
+Download latest version from [the release page](https://github.com/Aidbox/aidbox-sdk/releases). 
+
+### Usage
+
+To generate an SDK, use the following command:
+
+```bash
+aidbox-sdk generate <target-language> <input-source> --auth-token <aidbox-client-token>
+```
+
+Example:
+
+```bash
+aidbox-sdk generate dotnet http://localhost:8765/api/sdk/fhir-packages ---auth-token YmFzaWM6c2VjcmV0
+```
+
+
+
+### Options
+
+- `--help`: Display help information
+- `--output-dir <directory>` : Directory to ouput the generated SDK.
+- `--auth-token <token>` : Provide and authentication token
+
+
+
+
+