update people

Author: Yuanky123

src/data/people.json

@@ -185,6 +185,12 @@
 				"class": "phd",
 				"image": "img/people/bolin.jpg"
 			},
+			{
+				"name": "Tilmann Bruns",
+				"position": "PhD Student",
+				"class": "phd",
+				"image": "img/people/tilmann.jpg"
+			},
 			{
 				"name": "Yiyao Peng",
 				"position": "MPhil Student",