Add code understanding & testing point to Contributing Guidelines (#451)

* Added `Understand and Test the Code You Write` to contributing guidelines.

Co-authored-by: CodingWonders <CodingWonders@users.noreply.github.com>
Co-authored-by: nnyyxxxx <nnyyxxxx@users.noreply.github.com>

* Added a notice in `PULL_REQUEST_TEMPLATE.md`

* Merge `upstream/main`

---------

Co-authored-by: CodingWonders <CodingWonders@users.noreply.github.com>
Co-authored-by: nnyyxxxx <nnyyxxxx@users.noreply.github.com>

Author: 3 people

.github/CONTRIBUTING.md

@@ -40,22 +40,28 @@ cd linutil
 - **Make small, targeted PRs**: Focus on one feature or fix per pull request. This makes it easier to review and increases the likelihood of acceptance.
 - **Avoid combining unrelated changes**: PRs that tackle multiple unrelated issues are harder to review and might be rejected because of a single problem.
 
-## 8. Code Review and Feedback
+## 8. Understand and Test the Code You Write
+
+- **Review your code**: Before submitting your changes, take the time to review your code for readability, efficiency and performance. Consider how your changes affect the project.
+- **Avoid using LLMs**: Don't submit AI-generated code without reviewing and testing it first. Ensure that any code you submit is thoroughly understood and meets the project's standards.
+- **Testing Requirements**: Failure to conduct testing after multiple requests may result in the closure of your Pull Request.
+
+## 9. Code Review and Feedback
 
 - **Expect feedback**: PRs will undergo code review. Be open to feedback and willing to make adjustments as needed.
 - **Participate in reviews**: If you feel comfortable, review other contributors' PRs as well. Peer review is a great way to learn and ensure high-quality contributions.
 
-## 9. Contributing Is More Than Just Code
+## 10. Contributing Is More Than Just Code
 
 - **Test the tool**: Running tests and providing feedback on how the tool works in different environments is a valuable contribution.
 - **Write well-formed issues**: Clearly describe bugs or problems you encounter, providing as much detail as possible, including steps to reproduce the issue.
 - **Propose reasonable feature requests**: When suggesting new features, ensure they fit within the scope, style, and design of the project. Provide clear reasoning and use cases.
 
-## 10. Documentation
+## 11. Documentation
 
 - **Update the documentation**: If your change affects the functionality, please update the relevant documentation files to reflect this.
 
-## 11. License
+## 12. License
 
 - **Agree to the license**: By contributing to Linutil, you agree that your contributions will be licensed under the project's MIT license.
 

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,3 +1,8 @@
+<!--
+Read Contributing Guidelines before opening a PR.
+https://github.com/ChrisTitusTech/linutil/blob/main/.github/CONTRIBUTING.md
+-->
+
 ## Type of Change
 - [ ] New feature
 - [ ] Bug fix