Update main.py

Author: vikdevelop

src/main.py

@@ -1491,7 +1491,7 @@ def on_about_action(self, action, param):
         dialog = Adw.AboutWindow(transient_for=app.get_active_window())
         dialog.set_application_name(jT["timer_title"])
         dialog.set_version("2.9")
-        dialog.set_release_notes(release30B + release_29U + release_29T_20230214 + release_29T + release_29 + release_28 + release_27_11 + release_27I + release_27)
+        dialog.set_release_notes(release_30B + release_29U + release_29T_20230214 + release_29T + release_29 + release_28 + release_27_11 + release_27I + release_27)
         dialog.set_developer_name("vikdevelop")
         self.add_translations_link(dialog)
         dialog.set_license_type(Gtk.License(Gtk.License.GPL_3_0))