docs(readme): update contributions section

Author: paodb

README.md

@@ -56,13 +56,33 @@ The issues for this add-on are tracked on its github.com page. All bug reports a
 
 ## Contributions
 
-Contributions are welcome, but there are no guarantees that they are accepted as such. Process for contributing is the following:
-- Fork this project
+Contributions are welcome. There are two primary ways you can contribute: by reporting issues or by submitting code changes through pull requests. To ensure a smooth and effective process for everyone, please follow the guidelines below for the type of contribution you are making.
+
+#### 1. Reporting Bugs and Requesting Features
+
+Creating an issue is a highly valuable contribution. If you've found a bug or have an idea for a new feature, this is the place to start.
+
+* Before creating an issue, please check the existing issues to see if your topic is already being discussed.
+* If not, create a new issue, choosing the right option: "Bug Report" or "Feature Request". Try to keep the scope minimal but as detailed as possible.
+
+> **A Note on Bug Reports**
+> 
+> Please complete all the requested fields to the best of your ability. Each piece of information, like the environment versions and a clear description, helps us understand the context of the issue.
+> 
+> While all details are important, the **[minimal, reproducible example](https://stackoverflow.com/help/minimal-reproducible-example)** is the most critical part of your report. It's essential because it removes ambiguity and allows our team to observe the problem firsthand, exactly as you are experiencing it.
+
+#### 2. Contributing Code via Pull Requests
+
+As a first step, please refer to our [Development Conventions](https://github.com/FlowingCode/DevelopmentConventions) page to find information about Conventional Commits & Code Style requirements.
+
+Then, follow these steps for creating a contribution:
+ 
+- Fork this project.
 - Create an issue to this project about the contribution (bug or feature) if there is no such issue about it already. Try to keep the scope minimal.
 - Develop and test the fix or functionality carefully. Only include minimum amount of code needed to fix the issue.
-- Refer to the fixed issue in commit
-- Send a pull request for the original project
-- Comment on the original issue that you have implemented a fix for it
+- For commit message, use [Conventional Commits](https://github.com/FlowingCode/DevelopmentConventions/blob/main/conventional-commits.md) to describe your change.
+- Send a pull request for the original project.
+- Comment on the original issue that you have implemented a fix for it.
 
 ## License & Author
 
@@ -114,3 +134,4 @@ vaadin.allowed-packages = com.vaadin,org.vaadin,dev.hilla,com.flowingcode
 ```
 
 More information on Spring scanning configuration [here](https://vaadin.com/docs/latest/integrations/spring/configuration/#configure-the-scanning-of-packages).
+