Fix changelog.

Author: T4rk1n

CHANGELOG.md

@@ -7,8 +7,9 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 ## Added
 - [#2695](https://github.com/plotly/dash/pull/2695) Adds  `triggered_id` to `dash_clientside.callback_context`.  Fixes [#2692](https://github.com/plotly/dash/issues/2692)
 - [#2723](https://github.com/plotly/dash/pull/2723) Improve dcc Slider/RangeSlider tooltips. Fixes [#1846](https://github.com/plotly/dash/issues/1846)
-  - Add `tooltip.format` a string for the format template, {value} will be formatted with the actual value.
+  - Add `tooltip.template` a string for the format template, {value} will be formatted with the actual value.
   - Add `tooltip.style` a style object to give to the div of the tooltip.
+  - Add `tooltip.transform` a reference to a function in the `window.dccFunctions` namespace.
 - [#2732](https://github.com/plotly/dash/pull/2732) Add special key `_dash_error` to `setProps`, allowing component developers to send error without throwing in render. Usage `props.setProps({_dash_error: new Error("custom error")})`
 
 ## Fixed