Fix Quantecon documentation site

[Smit-create]

See: https://quanteconpy.readthedocs.io/en/latest/optimize/linprog_simplex.html

The function arguments are not displayed properly

[oyamad]

There are similar reports in readthedocs/sphinx_rtd_theme#766 and other issues as linked from there (but I haven't read those long discussions...).

[Smit-create]

This work around works for me:

diff --git a/docs/source/conf.py b/docs/source/conf.py
index ca37505..431173e 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -86,6 +86,8 @@ extensions = [
     'matplotlib.sphinxext.plot_directive',
 ]
 
+html4_writer = True
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']

[oyamad]

#651 does not seem to have fixed this issue: see for example https://quanteconpy.readthedocs.io/en/latest/tools/filter.html.