diff --git a/README.md b/README.md
index ce02849..0f21ce4 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,10 @@ core:
   cert_path: "cert.pem"
   key_path: "key.pem"
   http_proxy: "" # only working for GCM server
+  pid:
+    enabled: true
+    path: "gorush.pid"
+    override: true
 
 api:
   push_uri: "/api/push"
@@ -119,13 +123,13 @@ $ go get -u github.com/appleboy/gorush
 On linux
 
 ```
-$ wget -qO- https://github.com/appleboy/gorush/releases/download/v1.6.0/gorush-v1.6.0-linux-amd64.tar.gz | tar xvz
+$ wget -qO- https://github.com/appleboy/gorush/releases/download/v1.6.2/gorush-v1.6.2-linux-amd64.tar.gz | tar xvz
 ```
 
 On OS X
 
 ```
-$ wget -qO- https://github.com/appleboy/gorush/releases/download/v1.6.0/gorush-v1.6.0-darwin-amd64.tar.gz | tar xvz
+$ wget -qO- https://github.com/appleboy/gorush/releases/download/v1.6.2/gorush-v1.6.2-darwin-amd64.tar.gz | tar xvz
 ```
 
 ### Command Usage