Add missing docs BuildRequires
    
        Exception in .../docs/source/sphinxext.rst at block ending on line 162
        Specify :okexcept: as an option in the ipython:: block to suppress this message
        ---------------------------------------------------------------------------
        ModuleNotFoundError                       Traceback (most recent call last)
        ...
        ----> 1 import numpy.random
        ModuleNotFoundError: No module named 'numpy'
    
        Exception in .../docs/source/sphinxext.rst at block ending on line None
        Specify :okexcept: as an option in the ipython:: block to suppress this message
        ---------------------------------------------------------------------------
        ModuleNotFoundError                       Traceback (most recent call last)
        ...
        ----> 1 from matplotlib.pylab import *
        ModuleNotFoundError: No module named 'matplotlib'