Added doc for switching elasticsearch to infinity (#3370)

### What problem does this PR solve?

Added doc for switching elasticsearch to infinity

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
- [x] Documentation Update

conf/service_conf.yaml

@@ -6,7 +6,7 @@ mysql:
   user: 'root'
   password: 'infini_rag_flow'
   host: 'mysql'
-  port: 3306
+  port: 5455
   max_connections: 100
   stale_timeout: 30
 minio:
@@ -14,7 +14,7 @@ minio:
   password: 'infini_rag_flow'
   host: 'minio:9000'
 es:
-  hosts: 'http://es01:9200'
+  hosts: 'http://es01:1200'
   username: 'elastic'
   password: 'infini_rag_flow'
 redis: