Fix metadata for GUT (hint: it's not in Guatamala)

geomagio/ObservatoryMetadata.py

@@ -284,7 +284,7 @@ DEFAULT_METADATA = {
     },
     "GUT": {
         "metadata": {
-            "station_name": "Guatamala Test",
+            "station_name": "Guam Test",
             "agency_name": "United States Geological Survey (USGS)",
             "geodetic_latitude": "13.588",
             "geodetic_longitude": "144.867",