diff --git a/module2/exo1/toy_notebook_en.ipynb b/module2/exo1/toy_notebook_en.ipynb
index c1692e6dfdcc26b97071ed602e4a18866c33f299..770bf4697ee9e0c98ff3833f1f2c5251658bbf9f 100644
--- a/module2/exo1/toy_notebook_en.ipynb
+++ b/module2/exo1/toy_notebook_en.ipynb
@@ -11,14 +11,14 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## March 28, 2019"
+    "##March 28,2019"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    " **1 On the computation of $\\pi$"
+    " **1 On the computation of $\\pi$**"
    ]
   },
   {