cleanUrl: /en/guides/plugins/utterances
utterances: 
  repo: gudwns0102/utterances

What is the Utterances?

Utterances appends a comment block on your website using github repository issues.

utterances

Which one is better versus Disqus?

The biggest problem with utterances is that only github account holders can write comments. Other than that, there are no ads and the freedom of comment itself is much higher. (Personally, it's even prettier!)

utterances disqus
Who can write? only github users anyone
ads X O
markup O X

You can add it a page, not whole pages

using page yaml block

utterances: 
  repo: xxxx/xxxx

YAML code block reference