The package README shown on **PyPI** still advertised a NumPy quick-start. Now that Python dropped its NumPy runtime dependency (#317), this updates it:
- Tagline + install note: `pip install wickra` pulls **zero** third-party packages (not even NumPy); NumPy is an optional extra (`wickra[numpy]`).
- Quick start imports no NumPy; `batch` returns `array.array('d')` (with a note that `np.asarray` wraps it zero-copy if you use NumPy).
Ships with the data-layer release.
kingchenc
1f5eb90b0d