message: Simplify the example (use blosc_zstd)
diff: #[cfg(feature = "blosc")]
  -use hdf5::filters::{blosc_set_nthreads, Blosc};
  +use hdf5::filters::blosc_set_nthreads;
  use hdf5::{File, H5Type, Result};
  use ndarray::{arr2, s};
  @@ -26,7 +26,7 @@ fn main() -> Result<()> {
  blosc_set_nthreads(2); // set number of threads for compressing/decompressing chunks
  let builder = group.new_dataset_builder();
  #[cfg(feature = "blosc")]
  - let builder = builder.blosc(Blosc::ZStd, 9, true); // enable zstd compression with shuffling
  + let builder = builder.blosc_zstd(9, true); // enable zstd compression with shuffling
  let ds = builder
  .with_data(&arr2(&[
  // write a 2-D array of data
  