diff --git a/README.org b/README.org
index 11390c7f55a45fef1e707879a5ce2b1bd86bed6e..1acfe415b96e99438e51c2b55b204b175c45d841 100644
--- a/README.org
+++ b/README.org
@@ -15,13 +15,16 @@ was $G^{2}=18.086$ with 21 degrees of freedom. Our goal is to reproduce
 the computation behind these values and the Figure 4 of this article,
 possibly in a nicer looking way.
 
+#+BEGIN_CENTER
 *[[file:challenger.pdf][Here is our successful replication of Dalal et al. results using R]]*.
+#+END_CENTER
 
-In case it helps, we provide you with two implementations of this case
-study but we encourage you to *reimplement them by yourself* using both
-your favourite language and an other language you do not know yet.
-- A [[file:src/Python3/challenger.ipynb][Jupyter Python3 notebook]]
-- An [[file:src/R/challenger.Rmd][Rmarkdown document]]
+1. Try to *replicate the computation* from Dalal et al. In case it
+   helps, we provide you with two implementations of this case study
+   but we encourage you to *reimplement them by yourself* using both
+   your favourite language and an other language you do not know yet.
+   - A [[file:src/Python3/challenger.ipynb][Jupyter Python3 notebook]]
+   - An [[file:src/R/challenger.Rmd][Rmarkdown document]]
+2. Then _update the [[file:results.org][meta-study result table available here]] with your
+   own results_.
 
-Then *update the [[file:results.org][meta-study result table available here]] with your own
-results*.