docs: do this and don't do that

.github/CONTRIBUTING.md

@@ -3,7 +3,8 @@
 Thank you for your interest in contributing to our project!
 Your accepted contributions will be reflected in our repositories and related websites.
 
-Please read our [Code of Conduct](./CODE_OF_CONDUCT.md) to keep our community approachable and respectable.
+Please read our [Code of Conduct](./CODE_OF_CONDUCT.md) to keep our community approachable and respectful.  
+Also, if you are a permanent contributor, read our [DOs and DON'Ts](.github/DONTS.md).
 
 ## Getting started
 

.github/DONTS.md

@@ -0,0 +1,25 @@
+# ✅ DOs and ❌ DON'Ts
+
+These guidelines are key to working effectively as a team. We've learned them through experience, so follow them to avoid common mistakes.
+
+---
+
+## ✅ DOs  
+- **Align with Goals**: Keep the big picture in mind and break goals into smaller, actionable tasks for clarity and focus.  
+- **Focus on What Matters**: Work on tasks that directly contribute to our goals.  
+- **Take Ownership**: Tackle challenges head-on, and if you're stuck, communicate your difficulties with the team.  
+- **Overlap Work Hours**: Be available between 1–6 PM HKT daily to collaborate effectively.  
+- **Test Thoroughly**: Ensure your work is reliable and well-tested before marking it complete.  
+- **Leave Updates**: Share progress frequently through comments or commits, ideally on an hourly basis.  
+- **Value Time**: Respect others’ time. Work independently but collaborate when needed. Avoid relying on others for things you can handle yourself.  
+- **Wear Many Hats**: Embrace versatility—code, design, test, write, and explore ideas because we're passionate about building great products.  
+- **Be Resourceful**: Learn independently by exploring documentation, tutorials, and using tools like AI to find solutions.  
+
+---
+
+## ❌ DON'Ts  
+- **Engage in Low-Value Work**: Avoid tasks that don't meaningfully contribute to our goals.  
+- **Avoid Responsibility**: Take accountability for your tasks and challenges.  
+- **Neglect Testing**: Don’t rely on others to test your work for you.  
+- **Disappear Without Updates**: Keep the team informed—don’t make others chase you for progress.  
+- **Distract Others**: Avoid unnecessary or irrelevant messages. Share only what’s important and helpful to collaborators. 

README.md

@@ -6,4 +6,8 @@ This is where your contribution journey starts.
 
 Make sure to align yourself with:
 - [Contributing Guidelines](./.github/CONTRIBUTING.md)
+- [DOs & DON'T](.github/DONTS.md)
 - [Sick Leave Policy](./.github/LEAVE_POLICY.md)
+
+Subscribe to this repository's notifications, as we frequently push fixes and updates. You must be in sync with those updates.
+