Mention apply_gufunc in README

README.md

@@ -8,8 +8,8 @@ Cubed is a distributed N-dimensional array library implemented in Python using b
 
 - Implements the [Python Array API standard](https://data-apis.org/array-api/latest/) (see [coverage status](./api_status.md))
 - Guaranteed maximum memory usage for standard array functions
-- Follows [Dask Array](https://docs.dask.org/en/stable/array.html)'s chunked array API (`map_blocks`, `rechunk`, etc)
-- [Zarr](https://zarr.readthedocs.io/en/stable/) for storage
+- Follows [Dask Array](https://docs.dask.org/en/stable/array.html)'s chunked array API (`map_blocks`, `rechunk`, `apply_gufunc`, etc)
+- [Zarr](https://zarr.readthedocs.io/en/stable/) for persistent and intermediate storage
 - Multiple serverless runtimes: Python (in-process), [Lithops](https://lithops-cloud.github.io/), [Modal](https://modal.com/), [Apache Beam](https://beam.apache.org/)
 
 [Documentation](https://tomwhite.github.io/cubed)