How can I change the thumbnails associated to each of my posts when I link them on fb or on another platform ?
I included a picture through the "image à la une" ( which i guess if "front page image" in the English version) to my post and I would like it to appear as the thumbnail.
At the moment the thumbnails appearing on my links is my blog image...
Thanx for your help :)
The blog I need help with is ljocharlotte.com.