We have had a lot of people saying that they didn't know how to add a comment to the blog (a lot of times because the blog is in French). Therefore, I decided to write a post describing how to do it.
First, you must either click on the title of the post or click at the bottom of the page or where it says "Aucune commentaire" or "(x number) commentaires"
The section to add a comment says, “Enregistre un commentaire.” If there's already a comment there, it might say “Ajouter un commentaire.” The area to add a comment says, “Saisissez votre commentaire...”
After you type in the comment, you have to select from what you want to type in the comment. There's a drop-down menu that says “commentaire:”. If you don't have a Google account, then you can either choose one of the other sites or you can create an account. The steps to create an account are usually rather self-explanatory (and in English).
When you have done all this, you can click “Publier” and the comment should register.