diff --git a/encoding/README.md b/encoding/README.md
new file mode 100644
index 000000000..c147b3be2
--- /dev/null
+++ b/encoding/README.md
@@ -0,0 +1,7 @@
+# encoding
+
+## msgpack
+
+```shell
+go get -u github.com/go-kratos/kratos/contrib/encoding/msgpack/v2
+```
diff --git a/log/README.md b/log/README.md
index d640e7337..0fb786f1e 100644
--- a/log/README.md
+++ b/log/README.md
@@ -47,4 +47,10 @@ go get -u github.com/go-kratos/kratos/contrib/log/zap/v2
 
 ```shell
 go get -u github.com/go-kratos/kratos/contrib/log/fluent/v2
+```
+
+### aliyun
+
+```shell
+go get -u github.com/go-kratos/kratos/contrib/log/aliyun/v2
 ```
\ No newline at end of file
diff --git a/registry/README.md b/registry/README.md
index f5fcb08cd..ebbc6a57c 100644
--- a/registry/README.md
+++ b/registry/README.md
@@ -1,26 +1,37 @@
 # Registry
 
 ## Consul
+
 ```shell
 go get -u github.com/go-kratos/kratos/contrib/registry/consul/v2
 ```
 
 ## Etcd
+
 ```shell
 go get -u github.com/go-kratos/kratos/contrib/registry/etcd/v2
 ```
 
 ## zookeeper
+
 ```shell
 go get -u github.com/go-kratos/kratos/contrib/registry/zookeeper/v2
 ```
 
 ## Nacos
+
 ```shell
 go get -u github.com/go-kratos/kratos/contrib/registry/nacos/v2
 ```
 
 ## kubernetes
+
 ```shell
 go get -u github.com/go-kratos/kratos/contrib/registry/kubernetes/v2
+```
+
+## polaris
+
+```shell
+go get -u github.com/go-kratos/kratos/contrib/registry/polaris/v2
 ```
\ No newline at end of file