diff --git a/README.md b/README.md
index 789d19d..4cd5451 100644
--- a/README.md
+++ b/README.md
@@ -440,6 +440,22 @@ from gi.repository import Gtk, Adw, Gio, GLib  # Add GLib to imports
 
 ```
 
+### add about window (better About Dialog)
+```python
+         dialog = Adw.AboutWindow(transient_for=app.get_active_window()) 
+         dialog.set_application_name=("App name") 
+         dialog.set_version("1.0") 
+         dialog.set_developer_name("Developer") 
+         dialog.set_license_type(Gtk.License(Gtk.License.GPL_3_0)) 
+         dialog.set_comments("Adw about Window example") 
+         dialog.set_website("https://github.com/Tailko2k/GTK4PythonTutorial") 
+         dialog.set_issue_url("https://github.com/Tailko2k/GTK4PythonTutorial/issues") 
+         dialog.add_credit_section("Contributors", ["Name1 url"]) 
+         dialog.set_translator_credi("Name1 url") 
+         dialog.set_copyright("© 2022 developer") 
+         dialog.set_developers(["Developer"]) 
+         dialog.set_application_icon("com.github.devname.appname") # icon must be uploaded in ~/.local/share/icons or /usr/share/icons
+```
 For further reading on what you can add, see [***AboutDialog***](https://docs.gtk.org/gtk4/class.AboutDialog.html).
 
 ![A basic menu in headerbar](menu1.png)