jfschaefer update: fix publink, add github account

people/jfschaefer.md

@@ -3,10 +3,11 @@ layout: person
 fullname: Jan Frederik Schaefer 
 role: master-student
 pic: public/images/jfschaefer.jpg
-publist: auto
+github: jfschaefer
+publink: auto
 start_date: 2014-03
 ---
-My undergraduate studies I completed at [Jacobs University](https://www.jacobs-university.de/).
+I completed my undergraduate studies at [Jacobs University](https://www.jacobs-university.de/).
 The topic of my bachelor thesis was *"Declaration Spotting in Mathematical Documents"*.
 You can find it [here](https://gl.kwarc.info/supervision/BSc-archive/blob/master/2016/schaefer-frederick.pdf).