docs: Adding initial guide for contributors

CONTRIBUTING.md

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+# Contributing to this repository
+
+Thank you for considering contributing to **Bug Buster**! We welcome contributions of all kinds, including bug reports, feature requests, code contributions, and documentation improvements.
+
+# How to Contribute
+
+## Reporting Bugs
+
+1. Ensure the bug was not already reported by searching under Issues.
+2. Open a new issue with a clear and descriptive title and include as much relevant information as possible. Include screenshots or code snippets, if applicable.
+
+## Suggesting Features
+
+1. Check the Issues to see if a similar feature has already been requested.
+2. If not, open a new issue and provide a clear and concise description of the feature, explaining why it would be useful and how it should function.
+
+## Code Contributions
+
+1. Create your fork from our repo.
+2. Create a new branch specific to the feature or bugfix you will work on.
+3. Implement your changes and test it locally.
+4. Ensure that the modifications are documented in the README.md or other relevant documentation files, when applicable.
+5. Commit your changes with clear and concise commit messages.
+6. Push the changes to remote and open a PR to the forked repo.
+7. Wait for feedback from reviewers.
+
+# Community and Support
+
+Join our community discussions on [Telegram](https://t.me/+G_CPMEhCHC04MzA5).