Update figurewidget.md

Author: nicolaskruchten

doc/python/figurewidget.md

@@ -31,6 +31,7 @@ jupyter:
     page_type: example_index
     permalink: python/figurewidget/
     thumbnail: thumbnail/figurewidget-overview.gif
+    redirect_from: /python/ipython-widgets/
 ---
 
 #### Create a Simple FigureWidget