add changeable title in header

fet2020/templates/members/member.html

@@ -1,6 +1,8 @@
 {% extends 'members/index.html' %}
 {% load softhyphen_tags %}
 
+{% block title %}FET: {{ member.firstname }} {{ member.surname }}{% endblock %}
+
 {% block extraheader %}
     <meta content="{{member.image.url}}" property="og:image">
     <meta content="{{ member.firstname }}" property="og:profile:first_name">