merge master

.gitlab-ci.yml

README.md

docs/Makefile

docs/conf.py

docs/doc_requirements.txt

docs/docstring.rst

docs/docstring_sources/eossr.api.rst

docs/docstring_sources/eossr.api.zenodo.rst

docs/docstring_sources/eossr.metadata.rst

docs/docstring_sources/eossr.metadata.schema.rst

docs/docstring_sources/eossr.rst

docs/docstring_sources/eossr.scripts.rst

eossr/api/__init__.py

eossr/api/zenodo/__init__.py

eossr/api/zenodo/tests/test_zenodo.py

examples/notebooks/Harvest_zenodo.ipynb