Remind that the username is the email address

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

registration/templates/registration/mails/email_validation_email.html

@@ -26,6 +26,10 @@
     {% trans "This link is only valid for a couple of days, after that you will need to contact us to validate your email." %}
 </p>
 
+<p>
+    {% trans "As a reminder, your username is your email address:" %} {{ user.email }}.
+</p>
+
 <p>
     {% trans "Thanks" %},
 </p>

registration/templates/registration/mails/email_validation_email.txt

@@ -8,6 +8,8 @@ https://{{ domain }}{% url 'registration:email_validation' uidb64=uid token=toke
 
 {% trans "This link is only valid for a couple of days, after that you will need to contact us to validate your email." %}
 
+{% trans "As a reminder, your username is your email address:" %} {{ user.email }}
+
 {% trans "Thanks" %},
 
 {% trans "The TFJM² team." %}