json_normalize Doc Broken
First google result for json_normalize will yield:

https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.io.json.json_normalize.html

This however is a dead link. I think the issue is we moved json_normalize to the top-level pd.namespace, so this works:

https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.json_normalize.html

The former should redirect to the latter
