doc: update README for notes

README.md

@@ -5,3 +5,9 @@
 BBP NG, abbr **B**allance **B**lender **P**lugin **N**ext **G**eneration.
 
 For an introduction to this plugin, installing it, compiling it, reporting bugs, etc., see the GitHub Page of this project: https://yyc12345.github.io/BallanceBlenderHelper
+
+## Notes
+
+This project is now suspended and may be still suspended eternally 
+due to the lost interest and the lack of time of mine.
+In the rest of life time of this project, only easy-to-be-resolved critical bugs will be fixed.

README_ZH.md

@@ -5,3 +5,8 @@
 BBP NG，又名**B**allance **B**lender **P**lugin **N**ext **G**eneration（下一代Ballance Blender插件）。
 
 有关此插件的介绍，安装，编译，汇报错误等，请参阅本项目的GitHub Page页面：https://yyc12345.github.io/BallanceBlenderHelper
+
+## 注意事项
+
+该项目的开发目前已暂停，并且由于我兴趣的丧失和时间的不足，可能会永远暂停。
+在该项目剩余的生命周期中，只会修复易于解决的致命错误。