Hey, thanks for responding at all :3.
Anyways, back than i was using 3.5 not figuring it was for 4.x. It was my mistake. Sorry for not updating the post.
Thanks again, take care!
After adding the plugin to the addons folder and trying to enable it in the settings, I get the error "Unable to load addon script from path: 'res://addons/pedroid_todo/todo.gd'". This might be due to a code error in that script. Disabling the addon at 'res://addons/pedroid_todo/plugin.cfg' to prevent further errors." and when I open the plugin script it says "parse error: Unexpected "@" " on line 1.