add basic readme

README.md

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+# TGX2: Make Your Likes Public Again
+
+[WIP.]
+
+TGX2 is a browser extension that allows you to send posts you like on Twitter ("""X""") to your Telegram channel/group/PM [of a user who allowed your bot to message them. Including yourself.]
+
+Ridiculously over-engineered and build with Rust, WASM and whatnot by [yk](https://x.com/ymkeller).
+
+## Installation:
+- Download a zip archive for your browser and install it;
+- Message @BotFather on Telegram to create your own bot and acquire token;
+- Add bot to a group/chat that messages will be posted into, make sure that the bot is allowed to post there;
+- Get said chat/group ID (Telegram Settings → Advanced → Experimental → Show Peer IDs, or use any 3rd-party bot that can give you an ID from a forwarded message);
+- Fill token and group id fields in the extension popup, set other settings to your liking;
+- Enjoy people being able to see your liked xweets so they can get mad at you again!
+
+[](ui-preview.png)
+
+## TODO
+- [ ] Download and repost videos/media content on like if present, opt-in
+- [ ] Write a better guide/readme, maybe record a screencast
+- [ ] "Send your posts" feature, etc.