Update README.md

Author: zhukov

README.md

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 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](http://standardjs.com/)
 
+## Project is DEPRECATED
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+The project was superseeded by 2 new official Telegram Web Apps:
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+* https://github.com/morethanwords/tweb - Telegram Web K, based on source code of Webogram, rewritten in TypeScript.
+* https://github.com/Ajaxy/telegram-tt - Telegram Web Z, based on its own Teact framework (which re-implements React paradigm), uses a custom version of GramJS as an MTProto implementation. Written also in Typescript.
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 ## [Webogram](https://web.telegram.org) — Telegram Web App
 
 Telegram offers great [apps for mobile communication](https://www.telegram.org). It is based on the [MTProto protocol](https://core.telegram.org/mtproto) and has an [Open API](https://core.telegram.org/api). I personally like Telegram for its speed and cloud-support (that makes a web app possible, unlike in the case of WA and others).