Describe line, pie, and radar charts

docs/index.rst

@@ -17,6 +17,7 @@ Sexy python charting
 .. pygal:: 300 200
 
    chart = pygal.Line(x_label_rotation=25, fill=True, interpolate='cubic')
+   chart.title = 'Line Chart with Rotated X Labels, Fill, and Cubic Interpolation'
    chart.x_labels = 'one', 'two', 'three', 'four', 'five'
    chart.add('alpha', [1, 2, 3, 1, 2])
    chart.add('beta', [4, 3, 0, 1, 2])
@@ -24,6 +25,7 @@ Sexy python charting
 .. pygal:: 300 200
 
    chart = pygal.Pie()
+   chart.title = 'An Ordinary Pie Chart'
    chart.x_labels = 'one', 'two', 'three', 'four', 'five'
    chart.add('alpha', [1, 2, 3, 1, 2])
    chart.add('beta', [4, 3, 0, 1, 2])
@@ -31,6 +33,7 @@ Sexy python charting
 .. pygal:: 300 200
 
    chart = pygal.Radar(fill=True)
+   chart.title = 'Radar Chart with Fill'
    chart.x_labels = 'one', 'two', 'three', 'four', 'five'
    chart.add('alpha', [1, 2, 3, 1, 2])
    chart.add('beta', [4, 3, 0, 1, 2])