add CONTRIBUTING and update README (#25)

CONTRIBUTING.md

@@ -0,0 +1,33 @@
+# Welcome to opendatahub-tests contributing guide
+
+Thank you for contributing to our project!  
+
+## New contributor guide
+
+To get an overview of the project, read the [README](README.md).
+
+## Issues
+
+### Create a new issue
+
+If you find a problem with the code, [search if an issue already exists](https://github.com/opendatahub-io/opendatahub-tests/issues).  
+If you open a pull request to fix the problem, an issue will ba automatically created.  
+If a related issue doesn't exist, you can open a new issue using a relevant [issue form](https://github.com/opendatahub-io/opendatahub-tests/issues/new/choose).
+
+## Pull requests
+
+To contribute code to the project:
+
+- Fork the project and work on your forked repository
+- Before submitting a new pull request, make sure you have [pre-commit](https://pre-commit.com/) package and installed
+
+```bash
+pre-commit install
+```
+
+- When submitting a pull request, make sure to fill all the required, relevant fields for your PR.  
+  Make sure the title is descriptive and short.
+
+## General
+
+- Add typing to new code; typing is enforced using [mypy](https://mypy-lang.org/)

README.md

@@ -1,2 +1,48 @@
 # opendatahub-tests
-# TODO: update file
+
+This repository contains ODH / Red Hat Openshift AI (RHOAI) tests.
+
+## Contribute to opendatahub-tests
+Please follow the [Contributing Guide](CONTRIBUTING.md)
+
+# Getting started
+## Installation
+
+Install [uv](https://github.com/astral-sh/uv)
+
+## Tests cluster
+
+These tests can be executed against arbitrary cluster with ODH / RHOAI installed.
+
+You can log in into such cluster via:
+
+```bash
+oc login -u user -p password
+```
+
+Or by setting `KUBECONFIG` variable:
+
+```bash
+KUBECONFIG=<kubeconfig file>
+```
+
+or by saving the kubeconfig file under `~/.kube/config`
+
+## Running the tests
+### Basic run of all tests
+
+```bash
+uv run pytest
+```
+
+### To overwrite a pytest config argument
+
+```bash
+uv run pytest --tc=<arg name>:<arg value>
+```
+
+For example:
+
+```bash
+uv run pytest --tc=ci_s3_bucket_name:my-bucket
+```