Update docs/examples/google_cloud.rst

Author: dstansby

docs/examples/google_cloud.rst

@@ -14,5 +14,5 @@ This requires the ``gcsfs`` package in addition to ``zarr``.
     path_to_array = "a/b/c"
 
     fs = gcsfs.GCSFileSystem(project=bucket, token='anon', access='read_only')
-    store = zarr.N5FSStore(url=bucket, fs=fs)
+    store = zarr.FSStore(url=bucket, fs=fs)
     array = zarr.open_array(store=store, path=path_to_array)