hugo-theme-apache2/layouts/partials/footer.html

<footer>
    <p>
        created by {{ .Site.Author }}
    </p>
    <p>
        created with <a href="https://gohugo.io/">hugo</a>
        -
        source code: <a href="{{ .Site.Source }}">{{ .Site.Source }}</a>
    </p>
</footer>