Change Appearance format to v3.2-preview.2 (Azure#11255)

* v3.1-preview.2

* v3.2-preview change appearance format

* change to solve comments

* typo

* Prettier

* update readme

* update version and solve comment

* change version to v3.2-preview.2

Co-authored-by: Jiayuan Shi <jiayshi@microsoft.com>

Author: 2 people