Update README.md

Upload tickers.parquet

Update tickers (2023-11-02)

Update tickers (2023-10-26)

Update tickers (2023-10-12)

Update tickers (2023-10-10)

Update tickers (2023-10-09)

Add ETFs (2023-10-03)

Update tickers (2023-10-02)

Update tickers (2023-10-01)

feat: Update tickers (2023-09-27)

Use Parquet instead of CSV

feat: Add `type` and `region` columns

feat: Getting started

initial commit