aprendeR 0.1.0

Added a NEWS.md file to track changes to the package.
First versions translated to Spanish of some tutorials added

(Spanish-tutorial-name <- package/English-tutorial-name) :
- 010-puesta-a-punto <- learnr/ex-setup-r
- 020-empezando <- tutorial.helpers/getting-started
- 030-conceptos-basicos-de-datos <- learnr/ex-data-basics
- 040-rstudio-y-codigo <- r4ds.tutorials/rstudio-and-code
- 050-filtrar-datos <- learnr/ex-data-filter
- 060-mutar-datos <- learnr/ex-data-mutate
- 070-resumir-datos <- learnr/ex-data-sumarise
- 100-hojas-de-calculo <- r4ds.tutorials/spreadsheets
Many thanks to the all the authors of the source English tutorials!