Create README.md

Author: ayush-09

AI TicTacToe/src/README.md

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+# TicTacToe Game
+
+A simple implementation of the Tic Tac Toe game in Python.
+
+## Rules of the Game
+Tic Tac Toe is a classic game played on a 3x3 grid. Two players take turns placing their markers (X or O) on the board, aiming to get three of their marks in a row (horizontally, vertically, or diagonally) before the opponent does. If all the positions on the board are filled and no player has won, the game ends in a tie.
+
+## How to Play
+1. Run the `play_tic_tac_toe()` function in a Python environment.
+2. Player 1 will be prompted to choose either X or O.
+3. The players will take turns entering their positions on the board, ranging from 1 to 9. The board is displayed after each move.
+4. The game continues until one player wins or the board is full.
+5. After the game ends, players are given the option to play again.
+
+## Functions
+- `display_board(board)`: Prints the current state of the Tic Tac Toe board.
+- `player_input()`: Prompts the first player to choose X or O and assigns the markers to player 1 and player 2 accordingly.
+- `place_marker(board, marker, position)`: Places the given marker (X or O) at the specified position on the board.
+- `win_check(board, mark)`: Checks if the given mark (X or O) has won the game.
+- `choose_first()`: Randomly selects which player goes first.
+- `space_check(board, position)`: Checks if a particular position on the board is empty.
+- `full_board_check(board)`: Checks if the board is full.
+- `player_choice(board)`: Asks the current player to choose a position to place their marker and returns the chosen position.
+- `replay()`: Asks the players if they want to play again.
+
+## Usage
+1. Clone the repository or download the `tic_tac_toe.py` file.
+2. Open the file in a Python environment (e.g., IDLE, Jupyter Notebook, or any text editor with Python support).
+3. Run the script to start the game.
+4. Follow the prompts and enter your choices accordingly.
+5. Enjoy playing Tic Tac Toe!