diff --git a/README.md b/README.md
index 8f15937..f9fd100 100644
--- a/README.md
+++ b/README.md
@@ -57,6 +57,11 @@ To produce formulas and values, I use an another tool I an developing: `mapytex
 # bopytex_config.py
 from mapytex import Expression
 from random import random
+
+direct_access = {
+    "Expression": Expression,
+    "random": random
+}
 ```
 
 Every variables, objects or function inside this file will be available inside the template.
@@ -65,7 +70,7 @@ Every variables, objects or function inside this file will be available inside t
 % tpl_example.tpl
 \documentclass[12pt]{article}
 
-\title{Bopytex with Mapytex example -- \Var{ number }}
+\title{Bopytex with Mapytex example -- \Var{ subject.name }}
 
 \begin{document}
 
@@ -79,8 +84,19 @@ Every variables, objects or function inside this file will be available inside t
 \end{document}
 ```
 
-Then I can produce multiple documents (3 here)
+Information about my students are stored in a csv file (here `students.csv`)
+
+``` csv
+"Name","Age","Email","fraction level","calculus level"
+"Spike Tucker","22","s.tucker@randatmail.com","7","3"
+"Martin Payne","21","m.payne@randatmail.com","7","3"
+"Kimberly Baker","20","k.baker@randatmail.com","1","8"
+"Emma Bailey","29","e.bailey@randatmail.com","2","5"
+"Nicholas Taylor","28","n.taylor@randatmail.com","3","3"
+```
+
+Then I can produce a subject for each of my student
 
 ``` bash
-$ bopytex tpl_simple.tex -q 3 -c bopytex_config.py
+$ bopytex tpl_simple.tex -s students.csv -c bopytex_config.py
 ```