Add visitor stat to my blog

💻 1. Add script source to `stylesheets.html`:
html

<!-- busuanzi -->
<script async src="//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js"></script>

html
💻 2. Add whole site stats to `page_foot.html`:
html

<div class="container">
  <footer class="site-footer">
    <p class="powered-by">
      Total visits: <span id="busuanzi_value_site_pv"></span>.<br>
      Built with <a href="https://franklinjl.org" target="_blank" rel="noopener">Franklin.jl</a> and <a href="https://julialang.org" target="_blank" rel="noopener">Julia</a>.<br>
      The text is licensed under <a href="http://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA 4.0</a>.<br>
      The code is licensed under the <a href="https://mit-license.org/">MIT License</a>.<br>
      <strong>&copy; {{ fill author }}</strong>. Last modified: {{ fill fd_mtime }}. 
    </p>
  </footer>
</div>

html
💻 3. Add each post stats to the tag div through `utils.jl`
julia

@delay function hfun_page_tags()
    pagetags = globvar("fd_page_tags")
    pagetags === nothing && return ""
    io = IOBuffer()
    tags = pagetags[splitext(locvar("fd_rpath"))[1]] |> collect |> sort
    several = length(tags) > 1
    write(io, """<div class="tags">$(hfun_svg_tag())""")
    for tag in tags[1:end-1]
        t = replace(tag, "_" => " ")
        write(io, """<a href="/tag/$tag/">$t</a>, """)
    end
    tag = tags[end]
    t = replace(tag, "_" => " ")
    write(io, """<a href="/tag/$tag/">$t</a>&nbsp;&nbsp;&nbsp;&nbsp;""")
    write(io, """$(hfun_svg_view())""")
    # add view times busuanzi:
    write(io, """<span id="busuanzi_value_page_pv"></span>""")
    write(io, """</div>""")
    return String(take!(io))
end

julia