[theme support] Need to add index support to the theme?

[mmcky]

We have index elements that generate an index page called genindex.html by sphinx.

We could integrate this index page into the theme somewhere?

[mmcky]

Testing one approach in #80

[mmcky]

Sphinx generates the genindex file so it is available if we want to link to it via the theme.

https://quantecon.github.io/lecture-python-programming.myst/genindex.html

[mmcky]

Closing here as moved to theme repo