DOC fixe small typos and blank lines

Author: NelleV

examples/ticks_and_spines/spines_demo.py

@@ -3,10 +3,10 @@
 Spines
 ======
 
-This demo compares :
-    - normal axes, with spines on all four sides
-    - an axes with spines only on the left and bottom.
-    - an axes using custom bounds to limit the extent of the spine
+This demo compares:
+    - normal axes, with spines on all four sides;
+    - an axes with spines only on the left and bottom;
+    - an axes using custom bounds to limit the extent of the spine;
 """
 import numpy as np
 import matplotlib.pyplot as plt
@@ -30,7 +30,6 @@
 ax1.yaxis.set_ticks_position('left')
 ax1.xaxis.set_ticks_position('bottom')
 
-
 ax2.plot(x, y)
 
 # Only draw spine between the y-ticks

examples/ticks_and_spines/tick-locators.py

@@ -3,7 +3,7 @@
 Tick locators
 =============
 
-Show the different tick locators
+Show the different tick locators.
 """
 
 import numpy as np