Update readme and release a new version as v1.0.1 will always error out

[ignoramous]

Error: This request has been automatically failed because it uses a deprecated version of actions/download-artifact: v3. Learn more: https://github.blog/changelog/2024-04-16-deprecation-notice-v3-of-the-artifact-actions

From: https://github.com/celzero/firestack/actions/runs/20110537846

v1.0.1 now never runs. Also reported by #24