usage in readme

README.md

@@ -9,19 +9,31 @@ https://github.com/l0co/docker-puppeteer-api
 ```go
 package main
 
-import "fmt"
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+	"time"
+
+	_ "github.com/joho/godotenv/autoload"
+	"sneak.berlin/go/puppeteerapiclient"
+)
+
+const url = "https://news.ycombinator.com"
+const selector = ".athing .title .titleline"
 
 func main() {
 	apiURL := os.Getenv("API_URL")
 	apiSalt := os.Getenv("API_SALT")
 
-	client := NewClient(apiURL, apiSalt)
+	client := puppeteerapiclient.NewClient(apiURL, apiSalt)
 
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 
 	defer cancel()
 
-    response, err := client.Scrape(ctx, "https://news.ycombinator.com", ".athing .title")
+	response, err := client.Scrape(ctx, url, selector)
 
 	if err != nil {
 		log.Fatal(err)