Answer:
notas
Marca, señal, palabra o escrito breve que se pone en un texto para comentar, aclarar o completar algo que se menciona en él.
"nota marginal"
2.
Escrito breve en un papel u otro soporte con el que se avisa de algo o se recuerda algo.
"bloc de notas"
Explanation:
Mark, signal, word or brief writing that is put in a text to comment, clarify or complete something that is mentioned in it. "headnote" 2. Briefly written on a paper or other medium with which something is warned or something is remembered. "memo pad"