docs(getters-setters-virtuals): fix typos (#13074 #12811 #12655)

Shivam Kalra
2021-03-09T23:55:20-03:00

Co-authored-by: sliterok &lt;korobatov2011@yandex.ru&gt;
Co-authored-by: William Gurzoni &lt;william_luizat@hotmail.com&gt;