diff --git a/example/client-auth/README.md b/example/client-auth/README.md
index 44d0d50..c11fe06 100644
--- a/example/client-auth/README.md
+++ b/example/client-auth/README.md
@@ -52,8 +52,8 @@ Run nginx:
 docker run --rm -v $PWD/conf.d:/etc/nginx/conf.d -p 8080:443  nginx
 ```
 
-Open you browser at https://localhost:8080, and you should see "Welcome to
-nginx!".
+Open you browser at [https://localhost:8080](https://localhost:8080),
+and you should see "Welcome to nginx!".
 
 Try to remove your client certificate from your browser and you get 400 bad
 request.
diff --git a/example/client-auth/client-auth.go b/example/client-auth/client-auth.go
index c877fbb..8b1e4bf 100644
--- a/example/client-auth/client-auth.go
+++ b/example/client-auth/client-auth.go
@@ -1,16 +1,14 @@
 package main
 
 import (
+	"crypto/x509"
+	"crypto/x509/pkix"
 	"encoding/pem"
 	"flag"
 	"io/ioutil"
 	"log"
-	"time"
-
 	"os"
-
-	"crypto/x509"
-	"crypto/x509/pkix"
+	"time"
 
 	"github.com/boltdb/bolt"
 	"github.com/go-yaml/yaml"