Add example

example_test.go

@@ -0,0 +1,42 @@
+package mastodon_test
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	"github.com/mattn/go-mastodon"
+)
+
+func ExampleApplication_RegisterApp() {
+	app, err := mastodon.RegisterApp(context.Background(), &mastodon.AppConfig{
+		Server:     "https://mstdn.jp",
+		ClientName: "client-name",
+		Scopes:     "read write follow",
+		Website:    "https://github.com/mattn/go-mastodon",
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("client-id    : %s\n", app.ClientID)
+	fmt.Printf("client-secret: %s\n", app.ClientSecret)
+}
+
+func ExampleClient() {
+	c := mastodon.NewClient(&mastodon.Config{
+		Server:       "https://mstdn.jp",
+		ClientID:     "client-id",
+		ClientSecret: "client-secret",
+	})
+	err := c.Authenticate(context.Background(), "your-email", "your-password")
+	if err != nil {
+		log.Fatal(err)
+	}
+	timeline, err := c.GetTimelineHome(context.Background())
+	if err != nil {
+		log.Fatal(err)
+	}
+	for i := len(timeline) - 1; i >= 0; i-- {
+		fmt.Println(timeline[i])
+	}
+}