fix: Fix namespace using errors

Editor/EditorUserSettingsProjectStorage.cs

@@ -1,4 +1,6 @@
-namespace GBG.EditorUserSettings.Editor
+using UnityEditor;
+
+namespace GBG.EditorUserSettings.Editor
 {
     [FilePath(RelativePath, FilePathAttribute.Location.ProjectFolder)]
     internal class EditorUserSettingsProjectStorage : EditorUserSettingsStorage<EditorUserSettingsProjectStorage>

README.md

@@ -57,4 +57,5 @@ static class CustomEditorUserSettings
 ## 已知问题<br/>Known Issues
 
 1. 读写跨项目配置数据时，没有添加文件锁机制，同时读写时，可能会导致数据丢失。<br/>When reading and writing data across projects, there is no file lock mechanism added, and data may be lost when reading and writing at the same time.
-2. 读写跨项目配置数据时，低版本Unity可能无法读取某些高版本Unity存储的数据。<br/> When reading and writing data across projects, lower versions of Unity may not be able to read some data stored by higher versions of Unity.
+2. 读写跨项目配置数据时，低版本Unity可能无法读取某些高版本Unity存储的数据。<br/> When reading and writing data across projects, lower versions of Unity may not be able to read some data stored by higher versions of Unity.
+3. 不能存储继承自 `UnityEngine.Object` 的数据（若需要，可以存储guid、路径或 `GlobalObjectId` ）。<br/>Cannot store data inherited from `UnityEngine.Object` (if needed, you can store guid, path or `GlobalObjectId` )。

package.json

@@ -1,6 +1,6 @@
 {
   "name": "com.greenbamboogames.editorusersettings",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "displayName": "Editor User Settings!",
   "description": "Store user settings in Unity Editor.",
   "unity": "2019.4",