add rtds requirements file

Author: slizewsk

docs/requirements.txt

@@ -0,0 +1,101 @@
+#
+# This file is autogenerated by pip-compile with Python 3.11
+# by the following command:
+#
+#    pip-compile --output-file=docs/requirements.txt pyproject.toml
+#
+arviz==0.21.0
+    # via df_sampling (pyproject.toml)
+astropy==7.0.1
+    # via df_sampling (pyproject.toml)
+astropy-iers-data==0.2025.3.10.0.29.26
+    # via astropy
+cmdstanpy==1.2.5
+    # via df_sampling (pyproject.toml)
+contourpy==1.3.1
+    # via matplotlib
+cycler==0.12.1
+    # via matplotlib
+fonttools==4.56.0
+    # via matplotlib
+h5netcdf==1.6.1
+    # via arviz
+h5py==3.13.0
+    # via h5netcdf
+kiwisolver==1.4.8
+    # via matplotlib
+matplotlib==3.10.1
+    # via
+    #   arviz
+    #   df_sampling (pyproject.toml)
+    #   seaborn
+numpy==2.2.3
+    # via
+    #   arviz
+    #   astropy
+    #   cmdstanpy
+    #   contourpy
+    #   df_sampling (pyproject.toml)
+    #   h5py
+    #   matplotlib
+    #   pandas
+    #   pyerfa
+    #   scipy
+    #   seaborn
+    #   stanio
+    #   xarray
+    #   xarray-einstats
+packaging==24.2
+    # via
+    #   arviz
+    #   astropy
+    #   h5netcdf
+    #   matplotlib
+    #   xarray
+pandas==2.2.3
+    # via
+    #   arviz
+    #   cmdstanpy
+    #   df_sampling (pyproject.toml)
+    #   seaborn
+    #   xarray
+pillow==11.1.0
+    # via matplotlib
+pyerfa==2.0.1.5
+    # via astropy
+pyparsing==3.2.1
+    # via matplotlib
+python-dateutil==2.9.0.post0
+    # via
+    #   matplotlib
+    #   pandas
+pytz==2025.1
+    # via pandas
+pyyaml==6.0.2
+    # via astropy
+scipy==1.15.2
+    # via
+    #   arviz
+    #   df_sampling (pyproject.toml)
+    #   xarray-einstats
+seaborn==0.13.2
+    # via df_sampling (pyproject.toml)
+six==1.17.0
+    # via python-dateutil
+stanio==0.5.1
+    # via cmdstanpy
+tqdm==4.67.1
+    # via cmdstanpy
+typing-extensions==4.12.2
+    # via arviz
+tzdata==2025.1
+    # via pandas
+xarray==2025.1.2
+    # via
+    #   arviz
+    #   xarray-einstats
+xarray-einstats==0.8.0
+    # via arviz
+
+# The following packages are considered to be unsafe in a requirements file:
+# setuptools