[UPD] addons table in README.md

README.md

@@ -30,6 +30,7 @@ addon | version | maintainers | summary
 [web_domain_field](web_domain_field/) | 16.0.1.0.1 |  | Use computed field as domain
 [web_environment_ribbon](web_environment_ribbon/) | 16.0.1.0.0 |  | Web Environment Ribbon
 [web_field_numeric_formatting](web_field_numeric_formatting/) | 16.0.1.0.0 |  | Allow to render float and integer fields without thousands separator
+[web_group_expand](web_group_expand/) | 16.0.1.0.0 |  | Group Expand Buttons
 [web_help](web_help/) | 16.0.1.0.0 |  | Help Framework
 [web_ir_actions_act_multi](web_ir_actions_act_multi/) | 16.0.1.0.0 |  | Enables triggering of more than one action on ActionManager
 [web_ir_actions_act_window_page](web_ir_actions_act_window_page/) | 16.0.1.0.0 |  | Allows a developer to trigger a pager to show the previous or next next record in the form view