add Tuto 2 (thanks to Celine Berni)

src/View/Results/translate.py

@@ -42,6 +42,8 @@ class ResultsTranslate(MainTranslate):
         self._dict['day'] = _translate("Results", "day")
         self._dict['days'] = _translate("Results", "days")
 
+        self._dict['envelop'] = _translate("Results", "envelop")
+
         self._dict['x'] = _translate("Results", "X (m)")
 
         self._dict['label_bottom'] = _translate("Results", "Bottom")