For Wiki page when you create a new working copy the workflow send an Email alert to the validation user , the validation user receives email alert without the contain information to be approved.
How can i add this contain information in the email notification?
you can't by design. Jalios Digital Platform can not inject data from content (like wiki page content or metadata) in the workflow email.
2 options :
- custom developpement to do what you want
- check Wisen plugin to inject data from your contents into workflow email : Wisen - Module de personnalisation des e-mails de notification