Update CONTRIBUTING.md file

MohamedBechir · web-flow · commit c76c4ddda7be · 2020-05-24T23:00:46.000+01:00
I tried to update the CONTRIBUTING.md file in order to simplify as much as possible the process for the developers which will encourage them to join the project and hence enlarge our community.
Thank you for putting it under review, if there are any changes feel free to ask me to do it.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -1,2 +1,25 @@
-## Contribution Guidelines
-Read our [Contribution Guidelines](CONTRIBUTING.md) before you contribute.
+:+1::tada: Before guiding you through the contribution process TheAlgorithms/Java thank you for being one of us! :+1::tada:
+
+## How to contribute?
+
+#### **Did you find a bug?**
+
+* **Ensure the bug was not already reported** by searching on GitHub under [Project Issues](https://github.com/TheAlgorithms/Java/issues).
+
+* If you are unable to find an open issue refering to the same problem, depending on the type of issue follow the appropriate steps:
+
+#### **Do you want to contribute to the documentation?**
+
+* Please read the documentation in here [Contributing to the Documentation]() ,[open a new one issue](https://github.com/TheAlgorithms/Java/issues/new), make changes and then create a pull request, it will be put under review and accepted if it is approprite.
+
+#### **Do you want to add a new feature?**
+* [Open a new one issue](https://github.com/TheAlgorithms/Java/issues/new). Be sure to include a **title and a clear description** and a **test case** demonstrating the new feature that you want to add to the project.
+
+#### **Do you want to fix a bug?**
+* [Open a new one issue](https://github.com/TheAlgorithms/Java/issues/new).Be sure to include a **title and a clear description** and a **test case** demonstrating the expected behaviour that is not occuring.
+
+#### **Do you have questions about the source code?**
+
+* Ask any question about how to use the repository in the [TheAlgorithms room in GITTER](https://gitter.im/TheAlgorithms/community?source=orgpage#) or [open a new one issue](https://github.com/TheAlgorithms/Java/issues/new)
+
+:+1::tada: That's all you need to know about the process now it's your turn to help us improve the repository, thank you again! :+1::tada:
