Update comment to match example code

I'm not very familiar with this library, but this seemed to be a typo.

Author: Predrag Gruevski

doc/users/figures/contour1.py

@@ -2,7 +2,7 @@
 import matplotlib.pyplot as plt
 import numpy as np
 # set up orthographic map projection with
-# perspective of satellite looking down at 50N, 100W.
+# perspective of satellite looking down at 45N, 100W.
 # use low resolution coastlines.
 map = Basemap(projection='ortho',lat_0=45,lon_0=-100,resolution='l')
 # draw coastlines, country boundaries, fill continents.