Add blank lines to ReST examples

Author: WeatherGod

cycler.py

@@ -5,25 +5,30 @@
 Cycling through combinations of values, producing dictionaries.
 
 You can add cyclers::
+
     from cycler import cycler
     cc = (cycler('color', list('rgb')) +
           cycler('linestyle', ['-', '--', '-.']))
     for d in cc:
         print(d)
 
 Results in::
+
     {'color': 'r', 'linestyle': '-'}
     {'color': 'g', 'linestyle': '--'}
     {'color': 'b', 'linestyle': '-.'}
 
+
 You can multiply cyclers::
+
     from cycler import cycler
     cc = (cycler('color', list('rgb')) *
           cycler('linestyle', ['-', '--', '-.']))
     for d in cc:
         print(d)
 
 Results in::
+
     {'color': 'r', 'linestyle': '-'}
     {'color': 'r', 'linestyle': '--'}
     {'color': 'r', 'linestyle': '-.'}