update readme

Author: stplasim

readme.md

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 # Garage S3 Helm Chart
+
+Helm chart to deploy a single-node [Garage](https://garagehq.deuxfleurs.fr)
+(S3-compatible object storage) to Kubernetes. It runs one node with
+`replication_factor=1` (no clustering/node discovery), keeps upstream security
+hardening and optional Prometheus monitoring, and can optionally bootstrap a
+bucket + access key on first boot.
+
+## Configuration
+
+The default configuration for this Helm chart is defined in the [values.yaml](./garage/values.yaml) file.
+For detailed descriptions of all the configurable parameters, refer to the provided [values.reference.yaml](./garage/values.reference.yaml) file.
+This file serves as the reference for all available settings and their default values. Do not use this for deployment.
+
+## Manual Installation
+
+You can pull and install the Helm chart directly from the OCI registry.
+
+### Install Using OCI Registry
+
+```bash
+helm install <release-name> oci://ghcr.io/aboutbits/helm-garage/garage --version <chart-version> --values values-<env>.yaml --namespace <namespace>
+```
+
+## Build & Publish
+
+To build and publish the chart, visit the GitHub Actions page of the repository and trigger the workflow "Release Package" manually.
+
+## Information
+
+About Bits is a company based in South Tyrol, Italy. You can find more information about us on [our website](https://aboutbits.it).
+
+### Support
+
+For support, please contact [info@aboutbits.it](mailto:info@aboutbits.it).
+
+### Credits
+
+- [All Contributors](../../contributors)
+
+### License
+
+The MIT License (MIT). Please see the [license file](license.md) for more information.