Update contour.py

Author: sanrishi

lib/matplotlib/contour.py

@@ -1486,17 +1486,18 @@ def _initialize_x_y(self, z):
 levels : int or array-like, optional
     Determines the number and positions of the contour lines / regions.
 
-    If an int *n*, use `~.ticker.MaxNLocator`, which tries to
+    If an int *n*, use `~matplotlib.ticker.MaxNLocator`, which tries to
     automatically choose approximately *n+1* "nice" contour levels
-    between minimum and maximum numeric values of Z. Note that this
-    locator optimizes for "nice" intervals, so the actual number of
-    levels may be up to *n+2* depending on the data range.
+    between the minimum and maximum numeric values of *Z*. Note that the
+    actual number may be up to *n+2* depending on the data range.
 
     If array-like, draw contour lines at the specified levels.
     The values must be in increasing order.
-
-    If not specified, the default corresponds to *n=7*, typically
-    producing approximately 8 contour levels.
+    
+    If not given, a reasonable default is automatically chosen. For linear
+    scales, this corresponds to *n*=7, typically producing approximately
+    8 contour levels. For logarithmic scales, `~matplotlib.ticker.LogLocator`
+    is used instead.
 
 Returns
 -------