update:更新文档

FworkSpider/feapder/dedup/README.md

@@ -95,7 +95,7 @@ def test_filter():
 from feapder.dedup import Dedup
 
 def test_filter():
-    dedup = Dedup(Dedup.SwordFishFilter, redis_url=["192.168.3.207:2179", "192.168.3.166:2379"], expire_time=20)
+    dedup = Dedup(Dedup.RedisClusterFilter, redis_url=["192.168.3.207:2179", "192.168.3.166:2379"], expire_time=20)
 
     # 制造已存在数据
     datas = ["xxx", "bbb"]