Release 0.1.0

What's Changed

• Add StockDataFrame::new and switch CI to stable only by @jealous in #1
• Add crates.io publish workflow for release tags by @jealous in #2
• Add crates.io metadata and README status badges by @jealous in #3

New Contributors

• @jealous made their first contribution in #1

Full Changelog: https://github.com/jealous/rustockstats/commits/v0.1.0