Add README.md

Adds README.md to provide basic information about the project

Signed-off-by: Martin Perina <mperina@redhat.com>

README.md

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+# Hirte
+
+Hirte is a service orchestrator tool intended for multi-node devices (e.g.: edge devices) clusters
+with a predefined number of nodes and with a focus on highly regulated environment such as those requiring functional
+safety (for example in cars).
+
+Hirte is relying on [systemd](https://github.com/systemd/systemd) and its D-Bus API, which
+it extends for multi-node use case.
+
+Hirte can also be used to orchestrate containers using [podman](https://github.com/containers/podman/) and its ability
+to generate systemd service configuration to run a container.
+
+## How to contribute
+
+### Submitting patches
+
+Patches are welcome!
+
+Please submit patches to [github.com:containers/hirte](https://github.com/containers/hirte).
+More infomation about the development can be found in [README.developer](https://github.com/containers/hirte/README.developer.md).
+
+If you are not familiar with the development process you can read about it in
+[Get started with GitHub](https://docs.github.com/en/get-started).
+
+
+### Found a bug or documentation issue?
+To submit a bug or suggest an enhancement for hirte please use
+[GitHub issues](https://github.com/containers/hirte/issues).
+
+
+## Still need help?
+If you have any other questions, please join [CentOS Automotive SIG mailing list](https://lists.centos.org/mailman/listinfo/centos-automotive-sig/) and ask there.
+
+