How to SIMPLY set up Q&A Lite ?

I have a problem with the plugin Q & A Lite. I can not integrate it in my "FAQ" page ... Here is the URL of this page:

I would like the plugin be placed in this page, under this little text :

""Un problème, une question ? Posez-la ici et l'équipe A-Loc vous répond dans l'heure !"

How can I do that, please? Could you tell me a precise method to achieve this?

Many thanks for your help !