org-capture-template with changing heading (including a TIMESTAMP)

[Uwe Brauer]

Hi

For an org-capture-template I have a setting of the form

("mg" "Exercicios Annu21: asignados"
table-line (file+headline "~/somefile.org" "Exercicios Annu21: asignados")

However in that file I also want a header of the form 

* Exercicios Annu21: asignados <2021-03-19 vie 09:48>

That is a changing timestamp in the heading. How can I achieve that for
my template?

Thanks

Uwe Brauer