update example to use weather api

.wundergraph/operations/Weather.graphql

@@ -0,0 +1,22 @@
+query ($city: String!) {
+    weather_getCityByName(name: $city config: {units: metric}) {
+        coordinates: coord {
+            lat
+            lon
+        }
+        country
+        weather {
+            temperature {
+                actual
+                feelsLike
+                min
+                max
+            }
+            summary {
+                title
+                description
+                icon
+            }
+        }
+    }
+}