fix yaml install link

Author: nikibobi

install/README.md

@@ -261,7 +261,7 @@ This will install Agones in your cluster.
 ## Install with YAML
 
 We can install Agones to the cluster using the
-[install.yaml](https://github.com/GoogleCloudPlatform/agones/blob/release-0.1/install.yaml) file.
+[install.yaml](https://github.com/GoogleCloudPlatform/agones/blob/release-0.2.0/install/yaml/install.yaml) file.
 
 ```bash
 kubectl create namespace agones-system