Merge branch 'readme-mod'
Revert "Merge branch 'readme-mod'"

This reverts commit ca6775ba858aa9267f3b0ae762ffdc45e57b2c91, reversing
changes made to 5e8272d227286a36ac06f0c1ca66905d539ac415.
Actualización de Read me
Eliminando caracteres innecesarios
Componentes de polymer instalados
Merge branch 'front' of https://github.com/findMyPet/express-server into front