README.md in kaname-0.8.0 vs README.md in kaname-0.8.1

@@ -46,9 +46,10 @@
 ```
 
 also, you can set some options.
 
 ```
+ca_cert: "/path/to/ca.pem"
 client_cert: "/path/to/cert.pem"
 client_key: "/path/to/key.pem"
 region_name: "YourRegion"
 ```