README.md: fix quickstart links

Fixes: #2270
Signed-off-by: Yaniv Kaul <[email protected]>

Author: mykaul

README.md

@@ -36,13 +36,13 @@ helm repo add scylla-operator https://storage.googleapis.com/scylla-operator-cha
 ## Quickstarts and Training
 To quickly deploy a ScyllaCluster, you can choose one of the following options:
 
-* [Generic](docs/source/generic.md): Follow this guide for the general way to use the operator.
-* [GKE](docs/source/gke.md): An advanced guide for deploying Scylla with the **best performance settings** on [Google Kubernetes Engine](https://cloud.google.com/kubernetes-engine).
-* [EKS](docs/source/eks.md): An advanced guide for deploying Scylla with the **best performance settings** on [Amazon Elastic Kubernetes Service](https://aws.amazon.com/eks/).
+* [Generic](./docs/source/quickstarts/generic.md): Follow this guide for the general way to use the operator.
+* [GKE](./docs/source/quickstarts/gke.md): An advanced guide for deploying Scylla with the **best performance settings** on [Google Kubernetes Engine](https://cloud.google.com/kubernetes-engine).
+* [EKS](./docs/source/quickstarts/eks.md): An advanced guide for deploying Scylla with the **best performance settings** on [Amazon Elastic Kubernetes Service](https://aws.amazon.com/eks/).
 * [Scylla University Lesson](https://university.scylladb.com/courses/scylla-operations/lessons/kubernetes-operator/): Follow this lesson on Scylla University to learn more about the Operator and how to use it. The lesson includes some hands-on examples which you can run yourself. 
 
 ## Releases
-To find out more about our releases, support matrix and how our CI/CD is set up there is a [dedicated docs page](./docs/source/releases.md).
+To find out more about our releases, support matrix and how our CI/CD is set up there is a [dedicated docs page](./docs/source/support/releases.md).
 
 ## Documentation
 Scylla Operator documentation is available on https://operator.docs.scylladb.com
@@ -68,7 +68,7 @@ TODO: Link a dedicated roadmap.
 ## Support
 If you find a bug please file an [issue](https://github.com/scylladb/scylla-operator/issues) for us.
 
-We are also available on `#scylla-operator` channel on [Slack](https://scylladb-users-slackin.herokuapp.com/) if you have questions.
+We are also available on `#scylla-operator` channel on [Slack](https://scylladb-users.slack.com) if you have questions.
 
 ## Contributing
 We would **love** you to contribute to Scylla Operator, help make it even better and learn together! Have a look at the [Contributing Guide](docs/source/contributing.md) or reach out to us on `#scylla-operator` channel on [Slack](https://scylladb-users-slackin.herokuapp.com/) if you have questions.