diff --git a/README.md b/README.md
index 6245e8f..c2f9207 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Documents JSON
 
-Exercice [postgreSQL](exercice1.md)
+Exercice 1 : [postgreSQL](exercice1.md)
 
-Introduction à [MongoDB](MongoDB.md)
+Lire l'introduction à [MongoDB](MongoDB.md) avant de faire l'exercice 2
 
-Exercice [MongoDB](exercice2.md)
+Exercice 2 : [MongoDB](exercice2.md)
diff --git a/exercice2.md b/todo2.md
similarity index 100%
rename from exercice2.md
rename to todo2.md
diff --git a/exercice3.md b/todo3.md
similarity index 100%
rename from exercice3.md
rename to todo3.md