added Readme file to this repo

README.md

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+# Cheatsheets🔥
+
+<br>
+<p align="center">
+  <https://www.google.com/url?sa=i&url=https%3A%2F%2Fdev.to%2Fgithub%2Fhow-to-get-ready-for-hacktoberfest-2022-2ck2&psig=AOvVaw3ezI7pi39kHIEfe-GkedLX&ust=1664646042501000&source=images&cd=vfe&ved=0CAwQjRxqFwoTCPCIsPOHvfoCFQAAAAAdAAAAABAD>
+</p>
+
+## This repo consists of Large collection of Developer Cheat Sheets, created and maintained by the awesome developers across the globe🌎. it contains various Cheatsheets of languages like 
+  C++, java and many more 🔥
+
+:star: Feel free to create the new top-qulaity cheatsheets that are missing
+
+:star: Feel free update the contents of existing cheatsheets if you find something missing 
+
+### This repository is open to all members of the GitHub community. Any member can contribute to this project!
+# Guidelines
+
+    1. Dont copy the contents from somewhere else
+    2. Quality is Preffered over Quantity
+    3. Mention the references if you taken 
+    4. Note: Do not create a new directory if already exists.
+    5. New Cheatsheet names should be meaningful.
+    6. Don't spam it will be rejected immediately.
+
+---
+
+# Steps For Contribution
+
+0. Star
+
+1. Fork 
+
+2. Clone the forked repository.
+
+3. Navigate to the project directory.
+
+4 Make changes.
+
+6. Stage your changes and commit
+
+git commit -m "<your_commit_message>"
+```
+
+7. Push your local commits to the remote repo.
+```css
+git push -u origin <your_branch_name>
+```
+
+8. Create a Pull Request.
+
+9. Congratulations! 🎉 you've made your contribution.
+
+
+---
+small contributions like typos are also welcomed 😄