def doc_replace(match, sphinx_docs):
    """Convert Sphinx ``:doc:`` to plain reST link.

    Args:
        match (_sre.SRE_Match): A match (from ``re``) to be used
            in substitution.
        sphinx_docs (list): List to be track the documents that have been
            encountered.

    Returns:
        str: The ``match`` converted to a link.
    """
    sphinx_docs.append(match.group("path"))
    return "`{}`_".format(match.group("value"))