Update weather.json

weather.json

 [
+      {
+    "title": "Test météo 1",
+    "priority": "high",
+    "start": "2017-09-22T18:25:43.511Z",
+    "end": "2017-09-23T18:25:43.511Z",
+    "duration": 45,
+    "content": "Plop, ceci est un test"
+  },
   {
     "title": "Tentative de phishing",
     "priority": "info",