Hi Kathryn,
thanks for your reply.
I’m using a child theme already.
My site is not online yet, just local.
On a normal page, the sidebar is positioned on the right side of my article, like this :
post description | sidebar
On a normal Home page :
post title | post description
What I’d like on the homepage is :
post title | post description | sidebar
But when I add <?php get_sidebar(); ?> in index.php ( the one I copied in libre-child directory ), the sidebar appears at the BOTTOM-left of the posts before the footer, like this :
post title | post description
sidebar