Update index.md (#57)

index.md

@@ -6,7 +6,7 @@ Pizzarr is an R implementation for [Zarr](https://zarr.readthedocs.io/).
 The ``pizzarr`` package includes:
 
 * Support for reading and writing Zarr Arrays and Groups
-* Support for numeric Zarr data types (with [string](https://github.com/keller-mark/pizzarr/issues/22) data types on roadmap)
+* Support for numeric, logical, and string Zarr data types
 * Support for both R-like one-based slicing and Python-like zero-based slicing
 * Familiar API based on [zarr-python](https://github.com/zarr-developers/zarr-python) and [zarr.js](https://github.com/gzuidhof/zarr.js)
 * R-based and [R6](https://github.com/r-lib/R6/)-based implementation for ease of maintenance