Update Docs to render cleanly & v0.1.9 release

Former-commit-id: a047a99

Author: JackMcKew

README.md

@@ -106,9 +106,9 @@ import pandas_alive
 
 df = pandas_alive.load_dataset()
 
-animated_line_chart = df.diff().fillna(0).plot_animated(kind='line',period_length=200)
+animated_line_chart = df.diff().fillna(0).plot_animated(kind='line',show_period_annotation-False)
 
-animated_bar_chart = df.plot_animated(kind='barh',period_length=200,n_visible=10)
+animated_bar_chart = df.plot_animated(kind='barh',n_visible=10)
 
 pandas_alive.animate_multiple_plots('example-bar-and-line-chart.gif',[animated_bar_chart,animated_line_chart]
 ```
@@ -124,6 +124,7 @@ animated_line_chart = (
     urban_df.sum(axis=1)
     .pct_change()
     .dropna()
+    .mul(100)
     .plot_animated(kind="line", title="Total % Change in Population",show_period_annotation=False)
 )