Update toy_document_en.Rmd

module2/exo1/toy_document_en.Rmd

@@ -15,6 +15,7 @@ My computer tells me that $\pi$ is *approximatively*
 ```{r}
 pi
 ```
+
 ## Buffon's needle
 Applying the method of [Buffon's needle](https://en.wikipedia.org/wiki/Buffon%27s_needle_problem), we get the __approximation__