the footnotes were added

Author: Lorenagubaira

Diff for: README.es.md

@@ -73,3 +73,5 @@ Gracias a estas personas maravillosas ([emoji key](https://github.com/kentcdodds
 2. [Paolo (plucodev)](https://github.com/plucodev), contribución: (bug reports) 🐛, (programador), (traducción) 🌎
 
 Este proyecto sigue la especificación [all-contributors](https://github.com/kentcdodds/all-contributors). ¡Todas las contribuciones son bienvenidas!
+
+Este y otros ejercicios son usados para [aprender a programar](https://4geeksacademy.com/es/aprender-a-programar/aprender-a-programar-desde-cero) por parte de los alumnos de 4Geeks Academy [Coding Bootcamp](https://4geeksacademy.com/us/coding-bootcamp) realizado por [Alejandro Sánchez](https://twitter.com/alesanchezr) y muchos otros contribuyentes. Conoce más sobre nuestros [Curso de Programación](https://4geeksacademy.com/es/curso-de-programacion-desde-cero?lang=es) para convertirte en [Full Stack Developer](https://4geeksacademy.com/es/coding-bootcamps/desarrollador-full-stack/?lang=es), o nuestro [Data Science Bootcamp](https://4geeksacademy.com/es/coding-bootcamps/curso-datascience-machine-learning).

Diff for: README.md

@@ -73,3 +73,5 @@ Thanks goes to these wonderful people ([emoji key](https://github.com/kentcdodds
 2. [Paolo (plucodev)](https://github.com/plucodev), contribution: (bug reports) 🐛, contribution: (coder), (translation) 🌎
 
 This project follows the[all-contributors](https://github.com/kentcdodds/all-contributors) specification.Contributions of any kind are welcome!
+
+This and many other exercises are built by students as part of the 4Geeks Academy [Coding Bootcamp](https://4geeksacademy.com/us/coding-bootcamp) by [Alejandro Sánchez](https://twitter.com/alesanchezr) and many other contributors. Find out more about our [Full Stack Developer Course](https://4geeksacademy.com/us/coding-bootcamps/part-time-full-stack-developer), and  [Data Science Bootcamp](https://4geeksacademy.com/us/coding-bootcamps/datascience-machine-learning).