diff --git a/README.md b/README.md
index e88ff2b..1b23247 100644
--- a/README.md
+++ b/README.md
@@ -5,13 +5,21 @@ to set custom import paths for your Go packages.
 
 ## Quickstart
 
+Install [gcloud](https://cloud.google.com/sdk/downloads) and install Go App Engine component:
+
+```
+$ gcloud components install app-engine-go
+```
+
+Setup a [custom domain](https://cloud.google.com/appengine/docs/standard/python/using-custom-domains-and-ssl) for your app.
+
 Get the application:
 ```
 go get -u -d github.com/GoogleCloudPlatform/govanityurls
 cd $(go env GOPATH)/github.com/GoogleCloudPlatform/govanityurls
 ```
 
-Edit `app.yaml` with your domain and git repo information.
+Edit `app.yaml` with your custom domain and git repo information.
 
 ```
 env_variables: