[Release Notes] 20200907_v1 - Improve Post Editor Loading Speed

[English]

1. Version: 20200907_v1
2. Main Change: Decrease Post Editor loading Time (Improve Post Editor loading Speed) & refined editor preview flow.

[繁體中文 zh-tw]

1. 更新版本：20200907_v1
2. 主要系統更新：優化文章編輯器載入內容速度和預覽文章流程