Updated requirements

svn path=/trunk/; revision=34922

news/2017/news-20170116-01.en.xhtml

@@ -86,6 +86,11 @@ with the residents registration office (Einwohnermeldeamt) in Germany.
 This should ideally be done before starting the internship, or at
 latest on the first days of your internship.
 </p>
+<p>
+The internship must be a formal part of your education, or, if you
+do the internship on a voluntary basis, you must do the internship
+before you graduate and in direct connection with your studies.
+</p>
 
 <h2>Application deadline</h2>
 <p>