updated changelog

Author: yankev

CHANGELOG.md

@@ -15,7 +15,11 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 import plotly.tools as tls
 help(tls.FigureFactory.create_gantt)
 ```
-- Ability to download images in offline mode. By providing an extra keyword `image` to the existing plot calls, you can now download the images of the plots youmake in offline mode.
+- Ability to download images in offline mode. By providing an extra keyword `image` to the existing plot calls, you can now download the images of the plots you make in offline mode.
+
+### Fixed
+- Fixed check for the height parameter passed to `_plot_html`, and now sets the correct `link text` for plots
+generated in offline mode.
 
 
 ## [1.12.1] - 2016-06-19