[Fixes #112] Added README.md file for Rock Paper Scissors game

Rock Paper Scissors Game/README.md

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+# Rock Paper Scissors by marsian83
+This is a simple Python implementation of the classic Rock Paper Scissors game created by marsian83.
+
+##  Getting Started
+To play the game, follow these steps:
+
+1. Run the Python script.
+2. Press Enter to begin the game.
+3. Decide your move by entering "R" for Rock, "S" for Scissors, or "P" for Paper.
+4. The CPU will randomly select its move.
+5. The winner of the round will be announced.
+6. The session score will be displayed.
+7. Press Enter to continue to the next round.
+## Exiting the Game
+You can exit the game at any time by pressing Ctrl + . (Ctrl and period key).
+
+## Rules
+
+- Rock beats
+- Scissors beat Paper.
+- Paper beats Rock.
+
+## Custom Error Messages
+If you encounter any custom error messages during the game, please report them to the developer ([marsian83](https://github.com/marsian83/marsian83)) for troubleshooting.
+Rock beats Scissors.
+Scissors beats Paper.
+Paper beats Rock.
+Custom Error Messages
+If you encounter any custom error messages during the game, please report them to the developer ([marsian83](https://github.com/marsian83/marsian83)) for troubleshooting.
+
+Enjoy playing Rock Paper Scissors! Have fun! 🎮
+
+## Authors
+- [marsian83](https://github.com/marsian83/marsian83)
+- [DonMiller9294](https://github.com/DonMiller9294)
+- [Shahrayar123](https://github.com/Shahrayar123)
+- [Yajus114](https://github.com/Yajus114)