Update toy_document_orgmode_R_en.org

module2/exo1/toy_document_orgmode_R_en.org

-#+TITLE:  Your title
-#+AUTHOR: Your name
-#+DATE:   Today's date
+# On the computation of the pi
+**Arnaud Legrand**
+**25 juin 2018**
+
+# Asking the maths library
+My computer tells me that `d` is **approximatively**
+````
+pi
+```
+```
+## [1] 3.141593
+```
 #+LANGUAGE: en
 # #+PROPERTY: header-args :eval never-export