Add contributing.md

Author: scopeInfinity

CONTRIBUTING.md

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+## How to contribute
+
+#### Why was FuzzyOS created?
+
+* It's primarily a Hobby Project with aim of learning some trivial challenges during OS development.
+
+#### Did you find a bug?
+
+* I won't be surprised. Feel free to [create a GitHub issue](https://github.com/scopeInfinity/FuzzyOS/issues/new) and raise a pull request to submit a patch.
+
+#### Did you write a patch that fixes a bug?
+
+* Open a new GitHub pull request with the patch.
+
+* Ensure the PR description clearly describes the problem and solution. Include the relevant issue number if applicable.
+
+#### **Do you intend to add a new feature or change an existing one?**
+
+* Suggest the feature or change by opening a [new GitHub issue](https://github.com/scopeInfinity/FuzzyOS/issues/new). After discussing it with the maintainer one can proceed with the patch.
+
+Thanks!