DOC add joblib to doc-build deps
@@ -432,7 +432,7 @@ Building the documentation
Building the documentation requires installing some additional packages::
- pip install sphinx sphinx-gallery numpydoc matplotlib Pillow pandas scikit-image
+ pip install sphinx sphinx-gallery numpydoc matplotlib Pillow pandas scikit-image joblib
To build the documentation, you need to be in the ``doc`` folder::
