From 15e6db571292eb580280a03136073303e12609f0 Mon Sep 17 00:00:00 2001
From: Arnaud Blouin <arnaud.blouin@insa-rennes.fr>
Date: Tue, 13 Dec 2022 14:40:29 +0000
Subject: [PATCH] Update practicalSession-4.md

---
 practicalSession-4.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/practicalSession-4.md b/practicalSession-4.md
index 470be4f..3fcf173 100644
--- a/practicalSession-4.md
+++ b/practicalSession-4.md
@@ -27,6 +27,9 @@ Then, install the tutorials:
 `curl -L https://raw.githubusercontent.com/rust-lang/rustlings/main/install.sh | bash`
 
 
+## Running Rustlings, the Rust tutorials
+
+
 `cd rustlings`
 
 
@@ -36,3 +39,11 @@ Finally run to launch the exercices:
 
 
 Follow the given instructions while editing `rs` files with a text editor.
+
+
+Focus on code quality:
+- `variables4.rs`, what is the difference between mutability and immutability? Which relation with code safety? 
+
+
+
+
-- 
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