Link to latest docs on older version not operational



**Description**

I navigated from a Google search to https://docs.pygeoapi.io/en/0.9.0/_modules/pygeoapi/provider/elasticsearch_.html, a note is given that it is not the latest docs, but the link to latest is not operational 

https://docs.pygeoapi.io/en/stable/_modules/pygeoapi/provider/elasticsearch_.html

