Make setting and doc consistent with backend default settings. (#1860)

apm-sniffer/config/agent.config

@@ -39,7 +39,7 @@ agent.application_code=Your_ApplicationName
 # agent.is_open_debugging_class = true
 
 # Backend service addresses.
-collector.backend_service=127.0.0.1:10800
+collector.backend_service=127.0.0.1:11800
 
 # Logging level
 logging.level=DEBUG

docs/en/setup/backend/ui-setup.md

@@ -20,7 +20,7 @@ collector:
   ribbon:
     ReadTimeout: 10000
     # Point to all backend's restHost:restPort, split by , 
-    listOfServers: 10.2.34.1:10800,10.2.34.2:10800
+    listOfServers: 10.2.34.1:12800,10.2.34.2:12800
 
 security:
   user: