Fix nacos doc bug (#526)

* Update zookeeper.md

* Update nacos.md
diff --git a/docs/en-us/user/references/registry/nacos.md b/docs/en-us/user/references/registry/nacos.md
index ef8707f..e149cb6 100644
--- a/docs/en-us/user/references/registry/nacos.md
+++ b/docs/en-us/user/references/registry/nacos.md
@@ -62,7 +62,7 @@
 
 ### Configure Registry Center
 
-Assuming your Dubbo app uses the Spring Framework assembly, there are two configuration options available: [Dubbo Spring Externalization Configuration](https://mercyblitz.github.io/2018/01/18/Dubbo-%E5% A4%96%E9%83%A8%E5%8C%96%E9%85%8D%E7%BD%AE/) and the Spring XML configuration file.
+Assuming your Dubbo app uses the Spring Framework assembly, there are two configuration options available: [Dubbo Spring Externalization Configuration](https://mercyblitz.github.io/2018/01/18/Dubbo-%E5%A4%96%E9%83%A8%E5%8C%96%E9%85%8D%E7%BD%AE/) and the Spring XML configuration file.
 
 
 ### [Dubbo Spring Externalization Configuration](https://mercyblitz.github.io/2018/01/18/Dubbo-%E5%A4%96%E9%83%A8%E5%8C%96%E9%85%8D%E7%BD%AE/)
diff --git a/docs/en-us/user/references/registry/zookeeper.md b/docs/en-us/user/references/registry/zookeeper.md
index b81a2d0..aab299a 100644
--- a/docs/en-us/user/references/registry/zookeeper.md
+++ b/docs/en-us/user/references/registry/zookeeper.md
@@ -7,7 +7,7 @@
 Description on registration procedure:
 
 * When service provider boots up: write service URL address under directory `/dubbo/com.foo.BarService/providers`
-* When service consumer boots up: subscribe to `/dubbo/com.foo.BarService/providers` for provider's URL addresses. At the same time, write consumer's URL address under `/dubbo/com.foo.BarService/providers`.
+* When service consumer boots up: subscribe to `/dubbo/com.foo.BarService/providers` for provider's URL addresses. At the same time, write consumer's URL address under `/dubbo/com.foo.BarService/consumers`.
 * When monitor center boots up: subscribe to `/dubbo/com.foo.BarService` for the URL addresses from all providers and consumers.
 
 The following abilities are supported: