chore: add CONTRIBUTING.md

CONTRIBUTING.md

@@ -0,0 +1,21 @@
+# Contributing Guidelines
+
+The Eclipse Che Dashboard is an integral component of the [Eclipse Che](link-to-eclipse-che-readme.md) project. As such, this project adheres to the identical set of contributing guidelines as Eclipse Che.
+
+## Code of Conduct
+
+Prior to beginning your contributions, we kindly request that you review our [Code of Conduct](https://github.com/eclipse/che/blob/main/CODE_OF_CONDUCT.md).
+
+## Issues
+
+If you encounter a bug, please begin by searching for an existing open issue [here (area/dashboard)](https://github.com/eclipse/che/issues?q=is%3Aopen+is%3Aissue+label%3Aarea%2Fdashboard). If you do not find a relevant open issue, feel free to create a new one using one of our provided [issue templates](https://github.com/eclipse/che/issues/new/choose).
+
+## Pull Requests
+
+You can explore information about pull request templates and the necessary requirements for PR approval [at this location](https://github.com/eclipse/che/blob/main/CONTRIBUTING.md#pull-request-template-and-its-checklist).
+
+### Additional PR Requirements
+
+#### Approval of Project Dependencies
+
+The author has to ensure that all dependencies satisfy Eclipse [Intellectual Property](https://www.eclipse.org/projects/handbook/#ip).