Fix giscus blog post

[eerison]

• Fixed giscus blog post
• Change the docker-compose.yaml to latest node version (20)

[eerison]

Hello @FjellOverflow

thank you for this amazing integration, Could you take a look in this PR please

unfortunately I couldn't make this work without pass a value on client:value="react"

more info: https://docs.astro.build/en/reference/errors/no-client-only-hint/

[FjellOverflow]

Thanks @eerison!
Yeah, your changes and docs reference checks out, I guess I overlooked it 😄 , good job!
For anyone wondering why it might've still worked without (myself included), on build, Astro gives the helpful warning

The client:only directive for Comments is not recognized.
The renderer @astrojs/react will be used. If you intended to use a different renderer, please provide a valid client:only directive.

Guess I also overlooked that 😄

[eerison]

then I guess we could merge it @satnaing

:)

[satnaing]

LGTM too.
Thanks for your contribution 🎉