Merge branch 'dev' into 'main'

forgot to add the .rst files

See merge request bbatardiere/pyplnmodels!28

docs/source/load.rst

+.. autofunction:: pyPLNmodels.load_pln
+.. autofunction:: pyPLNmodels.load_model
+.. autofunction:: pyPLNmodels.load_plnpcacollection

docs/source/pln.rst

+.. autoclass:: pyPLNmodels.Pln
+   :members:
+   :inherited-members:
+   :special-members: __init__
+   :undoc-members:
+   :show-inheritance:

docs/source/plnpca.rst

+.. autoclass:: pyPLNmodels.PlnPCA
+   :members:
+   :inherited-members:
+   :special-members: __init__
+   :undoc-members:
+   :show-inheritance:

docs/source/plnpcacollection.rst

+.. autoclass:: pyPLNmodels.PlnPCAcollection
+   :members:
+   :show-inheritance:
+   :special-members: __init__
+   :undoc-members:

docs/source/sampling.rst

+.. autofunction:: pyPLNmodels.sampling_pln
+.. autofunciton:: pyPLNmodels.get_simulation_offsets_cov_coef