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README.md

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+# [Sabotage Game](sabotage-chat.herokuapp.com)
+
+Sabotage Game is a chat-based web game in which players try to find out a random spy among themselves.
+
+**Any constructive feedbacks are always welcome and appreciated!**
+
+## Game rule
+
+![rule](README_img/game_rule.png)
+
+**Requires at least 3 players**
+
+---
+
+## Development Notes
+
+Please note that this project is for hobby.
+
+- Validations and game-play may not cover some edge cases, so play as intended. (AKA, do not try to "hack")
+- It is designed for desktop play, not mobile (yet).
+- It is never intended for large traffic.
+- socket.io disconnects and reconnects as new socket on refresh. During game-play, a refresh will automatically be considered as being "voted out", so avoid using refresh in-game.
+
+### Todos:
+
+- [x] Chat bubble colors
+- [x] Chat spam prevention
+- [x] Empty chat prevention
+- [x] Input sanitization
+- [x] vote, sabotage timer
+- [x] Chat characters limit
+- [x] Font selection
+- [x] Game sounds
+- [ ] Private Room
+- [ ] Display who has voted (and maybe to whom?)
+- [ ] Mobile-friendly UI/UX
+- [ ] Show locale time instead of server time
+- [ ] Better UI for invalid access (instead of simple `alert()`)