Cant read lzf compressed files

I have a separate h5py script to generate a datafile and I initially set compression="lzf". The torch-hd5 version failed to read data from that file with the error mentioned below. I changed my script to set compression="gzip" and there were no problems reading it. Please update the docs to specify the compression formats supported. Thanks!

Error when reading lzf compressed file:

```
HDF5-DIAG: Error detected in HDF5 (1.8.5-patch1) thread 0:
#000: ../../src/H5Dio.c line 174 in H5Dread(): can't read data
major: Dataset
minor: Read failed
#001: ../../src/H5Dio.c line 404 in H5D_read(): can't read data
major: Dataset
minor: Read failed
#002: ../../src/H5Dchunk.c line 1724 in H5D_chunk_read(): unable to read raw data chunk
major: Low-level I/O
minor: Read failed
#003: ../../src/H5Dchunk.c line 2737 in H5D_chunk_lock(): data pipeline read failed
major: Data filters
minor: Filter operation failed
#004: ../../src/H5Z.c line 1095 in H5Z_pipeline(): required filter is not registered
major: Data filters
minor: Read failed
```

No documentation file or test is named in the issue. Start by locating the project's documentation describing HDF5 compression support and compare it with the reported lzf failure; done means the supported compression formats are explicitly documented, including the observed gzip behavior.

Written by the indexing model from the issue text.