Add comments to articles on the website

[Nishim12]

Add option to allow users to add comments to the article where they can give their feedback. We can use https://learnwagtail.com/tutorials/19-adding-comments-using-django-comments/ to add the comments to the articles. We can refer to this documentation https://django-comments-xtd.readthedocs.io/en/latest/tutorial.html#ref-tutorial.

[Nishim12]

This is difficult as we need to moderate the comments so not worth adding comments.