📝 add CONTRIBUTING.md

Author: BirjuVachhani

CONTRIBUTING.md

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+# Contributing
+We'd love for you to contribute to our source code and to make the project even better than it is today!
+Here are the guidelines we'd like you to follow:
+
+- [Code of Conduct](#coc)
+- [Git Commit Messages](#commit)
+- [Got a Question or Problem?](#question)
+- [Found an Issue?](#issue)
+
+## <a name="coc"></a> Code of Conduct
+[Code of Conduct](https://github.com/hyper-designed/hyper_effects/blob/main/CODE_OF_CONDUCT.md)
+
+## <a name="commit"></a> Git Commit Messages
+
+* Use the present tense ("Add feature" not "Added feature")
+* Use the imperative mood ("Move cursor to..." not "Moves cursor to...")
+* Limit the first line to 72 characters or less
+* Reference issues and pull requests liberally after the first line
+* When only changing documentation, include `[ci skip]` in the commit title
+* Consider starting the commit message with an applicable emoji:
+    * :art: `:art:` when improving the format/structure of the code
+    * :racehorse: `:racehorse:` when improving performance
+    * :non-potable_water: `:non-potable_water:` when plugging memory leaks
+    * :memo: `:memo:` when writing docs
+    * :bug: `:bug:` when fixing a bug
+    * :fire: `:fire:` when removing code or files
+    * :green_heart: `:green_heart:` when fixing the CI build
+    * :white_check_mark: `:white_check_mark:` when adding tests
+    * :lock: `:lock:` when dealing with security
+    * :arrow_up: `:arrow_up:` when upgrading dependencies
+    * :arrow_down: `:arrow_down:` when downgrading dependencies
+    * :shirt: `:shirt:` when removing lint/checkstyle warnings
+
+  Find all the available emojis [here](https://gitmoji.carloscuesta.me/).
+
+## <a name="question"></a> Got a Question or Problem?
+
+If you feel that we're missing an important bit of documentation, feel free to
+file an issue so we can help. Here's an example to get you started:
+
+```
+What are you trying to do or find out more about?
+
+Where have you looked?
+
+Where did you expect to find this information?
+```
+
+## <a name="issue"></a> Found an Issue?
+If you find a bug in the source code or a mistake in the documentation, you can help us by
+submitting an issue to our project.
+
+To submit an issue, please check the [Issue Template](https://github.com/hyper-designed/hyper_effects/blob/main/.github/ISSUE_TEMPLATE/bug_report.md).
+
+Even better you can submit a Pull Request with a fix.
+
+### Pull Request
+To generate a pull request, please consider following [Pull Request Template](https://github.com/hyper-designed/hyper_effects/blob/main/PULL_REQUEST_TEMPLATE.md).
+
+* Search [GitHub](https://github.com/hyper-designed/hyper_effects/pulls) for an open or closed Pull Request
+  that relates to your submission. You don't want to duplicate effort.
+* Please have a look at [License](https://github.com/hyper-designed/hyper_effects/blob/main/LICENSE) before sending pull
+  requests. We cannot accept code without this.
+
+That's it! Thank you for your contribution!