changelog formatting

Author: emilykl

CHANGELOG.md

@@ -17,8 +17,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Updated
 - Update plotly.js from version 3.1.1 to version 3.2.0. See the plotly.js [release notes](https://github.com/plotly/plotly.js/releases) for more information. [[#5357](https://github.com/plotly/plotly.py/pull/5388)]. Notable changes include:
-- Add `hovertemplatefallback` and `texttemplatefallback` attributes [[#7577](https://github.com/plotly/plotly.js/pull/7577)]
-- Add "SI extended" formatting rule for tick exponents on axis labels, allowing values to be displayed with extended SI prefixes (e.g., femto, pico, atto) [[#7249](https://github.com/plotly/plotly.js/pull/7249)]
+  - Add `hovertemplatefallback` and `texttemplatefallback` attributes [[#7577](https://github.com/plotly/plotly.js/pull/7577)]
+  - Add "SI extended" formatting rule for tick exponents on axis labels, allowing values to be displayed with extended SI prefixes (e.g., femto, pico, atto) [[#7249](https://github.com/plotly/plotly.js/pull/7249)]
 
 ### Deprecated
 - Deprecate `create_hexbin_mapbox` in favor of `create_hexbin_map`, update related function calls [[5358](https://github.com/plotly/plotly.py/pull/5358)], with thanks to @ajlien for the contribution!