add some instructions for HDF5-dependency #33

	name: Test B01_SL_load_single_file
	on:
	pull_request: {}
	push:
	branches: [ main ]
	jobs:
	python_run_scripts:
	strategy:
	fail-fast: false
	matrix:
	version: ['3.9']
	runs-on: ubuntu-latest
	steps:
	- name: install mpi
	run: sudo apt update && sudo apt-get install openmpi-bin openmpi-doc libopenmpi-dev
	- uses: actions/checkout@v3
	- name: setup python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.version }} # install the python version needed
	cache: "pip"
	- name: install icesat2-tracks using pip
	run: pip install .
	- name: first step B01_SL_load_single_file
	run: python src/icesat2_tracks/analysis_db/B01_SL_load_single_file.py 20190502052058_05180312_005_01 SH_testSLsinglefile2 True
	- name: second step B02_make_spectra_gFT
	run: python src/icesat2_tracks/analysis_db/B02_make_spectra_gFT.py SH_20190502_05180312 SH_testSLsinglefile2 True

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