Update README.md

Author: clampr

README.md

@@ -48,10 +48,10 @@ start = datetime(2018, 1, 1)
 end = datetime(2018, 12, 31)
 
 # Create Point for Vancouver, BC
-vancouver = Point(49.2497, -123.1193, 70)
+location = Point(49.2497, -123.1193, 70)
 
 # Get daily data for 2018
-data = Daily(vancouver, start, end)
+data = Daily(location, start, end)
 data = data.fetch()
 
 # Plot line chart including average, minimum and maximum temperature