fix vignesh uppercase

src/data/team.json

@@ -156,7 +156,7 @@
         },
         {
             "cardWidth": "normal",
-            "portrait": "/images/uploads/VigneshDevendran.jpg",
+            "portrait": "/images/uploads/vigneshdevendran.jpg",
             "name": "Vignesh Devendran",
             "fonction": "",
             "description": "Developer with many years of experience in developing enterprise web applications. Vignesh currently work towards improving and extending features in Kotahi platform. He is a creative logical thinker with a great passion for technology and innovation. He is from Tamil Nadu, India."