avoid "_build/html/" in docs link

e.g., https://docs.e3sm.org/e3sm_data_docs/_build/html/index.html

we should probably get rid of `_build/html/` from the string

@chengzhuzhang @forsyth2 @tomvothecoder lemme know if you'd like me to take a stab at this; should be a straightforward task for some friends :copilot:

Search the repository for the example URL and occurrences of `_build/html/` to identify the documentation source that generates the link. Remove that path segment from the affected link, then build or preview the documentation and verify that the resulting link resolves without `_build/html/`.

Written by the indexing model from the issue text.