Update Readme.md

Author: R3D2

README.md

@@ -59,6 +59,13 @@ if( !empty($_POST) && isset($_POST['email']) ) {
 ?>
 ```
 
+## TODO
+- Add url in the footer of the newsletter to unsubscribe
+- Add the possibility to customize routes in the config.php
+- Modify the feature to add subscribers in the plugin for easier integration
+- Enhance the way the plugin deals with error in the panel
+- Add Translations
+
 ## Disclaimer
 
 This plugin is provided "as is" with no guarantee. Use it at your own risk and always test it yourself before using it in a production environment. If you find any issues, please [create a new issue](https://github.com/username/plugin-name/issues/new).