Yes, you can edit your article, or you can simply leave a comment with @curateme in the text.
The latter option is to allow others to nominate your post. Author nominations do not count as high as when others nominate you.
Not all articles that are nominated will be selected There are many filters used. Please read the post for more details.
A post older than 48 hours will not show up on the "New" list however. There are more lists that will be created including "The Top 25 for the week".
Okay, now I understand it better. Thanks.