Update CHANGELOG.md for PR learningequality#722

CHANGELOG.md

@@ -7,6 +7,63 @@ Changelog is rather internal in nature. See release notes for the public overvie
 <!-- [DO NOT REMOVE-USED BY GH ACTION] PASTE CHANGELOG -->
 
 
+- [#722]
+  - **Description:** Inserts the overlay container element `#k-overlay` to an application's document body during KDS initialization.
+  - **Products impact:** KDS initialization
+  - **Addresses:** -
+  - **Components:** -
+  - **Breaking:** no
+  - **Impacts a11y:** no
+  - **Guidance:** Remove any custom teleportation logic and use new KDS components and props instead.
+
+[#722]: https://github.com/learningequality/kolibri-design-system/pull/722
+
+- [#722]
+  - **Description:** Adds new `KOverlay` component
+  - **Products impact:** New API
+  - **Addresses:** -
+  - **Components:**  `KOverlay`
+  - **Breaking:** no
+  - **Impacts a11y:** no
+  - **Guidance:** -
+
+[#722]: https://github.com/learningequality/kolibri-design-system/pull/722
+
+- [#722]
+  - **Description:** Renames `KModal`'s `appendToRoot` prop to `appendToOverlay`
+  - **Products impact:** Updated API
+  - **Addresses:** -
+  - **Components:**  `KModal`
+  - **Breaking:** yes
+  - **Impacts a11y:** no
+  - **Guidance:** Rename `KModal`'s `appendToRoot` prop to `appendToOverlay`
+
+[#722]: https://github.com/learningequality/kolibri-design-system/pull/722
+
+- [#722]
+  - **Description:** Adds new prop, `appendToOverlay`, to `KTooltip`
+  - **Products impact:** New API
+  - **Addresses:** -
+  - **Components:**  `KTooltip`
+  - **Breaking:** no
+  - **Impacts a11y:** no
+  - **Guidance:** -
+
+[#722]: https://github.com/learningequality/kolibri-design-system/pull/722
+
+- [#722]
+  - **Description:** Makes the `sidebar` icon flip in RTL languages
+  - **Products impact:** Bugfix
+  - **Addresses:** -
+  - **Components:**  Icons
+  - **Breaking:** no
+  - **Impacts a11y:** yes
+  - **Guidance:** -
+
+[#722]: https://github.com/learningequality/kolibri-design-system/pull/722
+
+
+
 - [#626]
   - **Description:** Bump slackapi/slack-github-action from 1.25.0 to 1.26.0
   - **Products impact:** Dev Dependency upgrade