Merge pull request #27 from miyunari/add_docs_community_project

Add CONTRIBUTORS and ROADMAP file

Author: miyunari

CONTRIBUTORS.md

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+# Contributors
+
+Thank you to all contributors who help make this project better! We appreciate contributions of all types — code, documentation, testing, issue triage, and community engagement.
+
+---
+
+## 👩‍💻 Maintainers
+
+The following contributors are trusted maintainers of this project. They are responsible for reviewing PRs, managing issues, and guiding the project’s direction:
+
+| Name | GitHub | Role |
+|------|--------|------|
+| Nina Bongartz | [@miyunari](https://github.com/miyunari) | Maintainer |
+| Ivan Font | [@font](https://github.com/font) | Maintainer |
+| Rachel Yordan | [@kahboom](https://github.com/kahboom) | Maintainer |
+
+> Maintainers are listed based on their current responsibilities. If you're interested in becoming a maintainer, check out the [CONTRIBUTING.md](./CONTRIBUTING.md) and reach out on our Slack!
+
+---
+
+## 🧑‍🤝‍🧑 Community Contributors
+
+Everyone who's contributed — whether through PRs, issues, or discussions — is recognized here or on [GitHub contributors](https://github.com/sigstore/REPO/graphs/contributors).

ROADMAP.md

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+# Sigstore Model-Validation-Operator Roadmap
+
+## Objective
+
+This roadmap outlines the community direction for the Sigstore Model-Validation-Operator from April 2025 through 2026 and beyond. It focuses on short-term deliverables with a long-term vision for secure and flexible AI model validation on Kubernetes.
+
+## Background
+
+### Problem
+
+There is currently no standard method for validating AI/ML models on Kubernetes, whether sourced from volumes, OCI images, or remote APIs. As model deployment becomes increasingly central, ensuring model integrity is critical.
+
+### Current Status
+
+With this repository, a proof of concept exists that injects an `initContainer` into workloads to validate signed models from mounted volumes using the [Sigstore Model Transparency CLI](https://github.com/sigstore/model-transparency/tree/main/src/model_signing).
+
+## Vision
+
+As the project is still in its early stages, we should further evaluate how models are typically consumed ([model-transparency#435](https://github.com/sigstore/model-transparency/issues/435)) — e.g., via volumes, OCI images, remote APIs, or a combination. Based on these findings, we may consider supporting partial verification to accommodate mixed sources ([model-transparency#434](https://github.com/sigstore/model-transparency/issues/434)). In the long term, this effort could be integrated into the Sigstore policy-controller ([model-transparency#436](https://github.com/sigstore/model-transparency/issues/436)) or remain as a standalone operator.