Updated Assignments overview (markdown)

Assignments-overview.md

@@ -58,10 +58,7 @@ This configuration example is written in YAML and serves only for demostration p
 submission:  # information about this particular submission
 	job-id: eval_5
 	language: "cpp"
-	file-collector:
+	file-collector: "http://localhost:36587"
-		hostname: "http://localhost:36587"
-		username: "654321"  # can be ignored in specific modules
-		password: "123456"  # can be ignored in specific modules
 tasks:
 	- task-id: "fetch_input"
 	  priority: 2