feat: add HTTP store support

README.md

@@ -30,7 +30,14 @@ You can then use your `zarr` as normal (with some caveats)!
 
 We export a `ZarrsCodecPipeline` class so that `zarr-python` can use the class but it is not meant to be instantiated and we do not guarantee the stability of its API beyond what is required so that `zarr-python` can use it.  Therefore, it is not documented here.  We also export two errors, `DiscontiguousArrayError` and `CollapsedDimensionError` that can be thrown in the process of converting to indexers that `zarrs` can understand (see below for more details).
 
-At the moment, we only support local filesystems but intend to support more in the future: https://github.com/ilan-gold/zarrs-python/issues/44
+At the moment, we only support a subset of the `zarr-python` stores:
+
+- [x] [LocalStore](https://zarr.readthedocs.io/en/main/_autoapi/zarr/storage/local/index.html) (FileSystem)
+- [RemoteStore](https://zarr.readthedocs.io/en/main/_autoapi/zarr/storage/remote/index.html)
+  - [x] [HTTPFileSystem](https://filesystem-spec.readthedocs.io/en/latest/api.html#fsspec.implementations.http.HTTPFileSystem)
+
+A `NotImplemented` error will be raised if a store is not supported.
+We intend to support more stores in the future: https://github.com/ilan-gold/zarrs-python/issues/44.
 
 ### Configuration