update README.md

README.md

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-VSCode Android
+VHCode Android
 =================
 
+This project use [https://github.com/cdr/code-server](cdr/code-server) as the core engine, not Visual Studio Code and is not affiliated with or endorsed by Microsoft Corporation.
+
 If you want to play with the server, build it yourself using [this repo](https://github.com/vhqtvn/vscode-android-server).
 
 Builtin VSCode server has builtin termux, you can start right away by openning the terminal view and run `pkg install git` (there's maybe incompatible package, please report).
 
-Google play link: [https://play.google.com/store/apps/details?id=vn.vhn.vsc](https://play.google.com/store/apps/details?id=vn.vhn.vsc). Latest stable version are on Google Play.
+Google play link: [https://play.google.com/store/apps/details?id=vn.vhn.vsc](https://play.google.com/store/apps/details?id=vn.vhn.vsc). Latest stable version are on Google Play.
+