To edit your listing you should add the generated code to http://trois-rivieres.over-blog.com/pages/Video-963442.html as it's shown below:

<meta name="http://trois-rivieres.over-blog.com/pages/Video-963442.html-verifycation" content="ad0a81fcc74df3b104e559222b9f8da3" >

where generated code is: