Update module3/exo2/exercice.ipynb

module3/exo2/exercice.ipynb

@@ -53,7 +53,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "In order to make the data used in the analysis available and avoid possible problems in their accessibility, dataset has been downloaded by the [main site](https://www.sentiweb.fr/datasets/incidence-PAY-3.csv) (stored into the variable `data_url`) and copied in a local file associated with this [url](https://app-learninglab.inria.fr/moocrr/gitlab/59f64515f1441eb96cdb77ebbe26d68e/mooc-rr/blob/master/module3/exo2/incidence-PAY-7.csv) (stored into the variable `data_file`). In case the local file is not present, then it is downloaded from the relative url."
+    "In order to make the data used in the analysis available and avoid possible problems in their accessibility, dataset has been downloaded by the [main site](https://www.sentiweb.fr/datasets/incidence-PAY-7.csv) (stored into the variable `data_url`) and copied in a local file associated with this [url](https://app-learninglab.inria.fr/moocrr/gitlab/59f64515f1441eb96cdb77ebbe26d68e/mooc-rr/blob/master/module3/exo2/incidence-PAY-7.csv) (stored into the variable `data_file`). In case the local file is not present, then it is downloaded from the relative url."
    ]
   },
   {