fix: broken rtfd build due to numpydoc getting old (#161)

Author: phantomas1234

docs/source/conf.py

@@ -29,7 +29,7 @@
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest', 'sphinx.ext.todo', 'sphinx.ext.coverage',
-              'sphinx.ext.mathjax', 'sphinx.ext.ifconfig', 'sphinx.ext.viewcode', 'numpydoc']
+              'sphinx.ext.mathjax', 'sphinx.ext.ifconfig', 'sphinx.ext.viewcode', 'sphinx.ext.napoleon']
 
 mathjax_path = "https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"
 

requirements_rtd.txt

@@ -1,3 +1 @@
-sphinx-rtd-theme>=0.1.6
-numpydoc==0.5
-sympy==0.7.5
+sphinx-rtd-theme>=0.1.6