Update README

README.md

@@ -117,7 +117,7 @@ Use `pgx.available_envs() -> Tuple[EnvId]` to see the list of currently availabl
 |<a href="https://en.wikipedia.org/wiki/Minichess">Gardner Chess</a><br>`"gardner_chess"`|<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/gardner_chess_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/gardner_chess_light.gif" width="60px">| `v0` | *5x5 chess variant, excluding castling.* |
 |<a href="https://en.wikipedia.org/wiki/Go_(game)">Go</a><br>`"go_9x9"` `"go_19x19"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/go-19x19_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/go-19x19_light.gif" width="60px">| `v0` | *Strategically place stones, claim territory.* |
 |<a href="https://en.wikipedia.org/wiki/Hex_(board_game)">Hex</a><br>`"hex"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/hex_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/hex_light.gif" width="60px">| `v0` | *Connect opposite sides, block opponent.* |
-|<a href="https://en.wikipedia.org/wiki/Kuhn_poker">Kuhn Poker</a><br>`"kuhn_poker"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/kuhn_poker_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/kuhn_poker_light.gif" width="60px">| `v0` | *Three-card betting and bluffing game.* |
+|<a href="https://en.wikipedia.org/wiki/Kuhn_poker">Kuhn Poker</a><br>`"kuhn_poker"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/kuhn_poker_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/kuhn_poker_light.gif" width="60px">| `v1` | *Three-card betting and bluffing game.* |
 |<a href="https://arxiv.org/abs/1207.1411">Leduc hold'em</a><br>`"leduc_holdem"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/leduc_holdem_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/leduc_holdem_light.gif" width="60px">| `v0` | *Two-suit, limited deck poker.* |
 |<a href="https://github.com/kenjyoung/MinAtar">MinAtar/Asterix</a><br>`"minatar-asterix"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/minatar-asterix.gif" width="50px">| `v1` | *Avoid enemies, collect treasure, survive.* |
 |<a href="https://github.com/kenjyoung/MinAtar">MinAtar/Breakout</a><br>`"minatar-breakout"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/minatar-breakout.gif" width="50px">| `v1` | *Paddle, ball, bricks, bounce, clear.* |