added optional name values

public/v2/apps/vsts.json

@@ -1,7 +1,7 @@
 {
     "captainVersion": "2",
     "documentation": "Taken from https://hub.docker.com/r/microsoft/vsts-agent/",
-    "displayName": "",
+    "displayName": "VSTS",
     "description": "VSTS is an integrated development environment (IDE) developed as a software product by Microsoft Corp",
     "dockerCompose": {
         "version": "3.3",