Merge pull request rook#13833 from karthik-us/doc-fix

doc: fix broken links

Documentation/README.md

@@ -18,11 +18,11 @@ Rook is hosted by the [Cloud Native Computing Foundation](https://cncf.io) (CNCF
 ## Quick Start Guide
 
 Starting Ceph in your cluster is as simple as a few `kubectl` commands.
-See our [Quickstart](quickstart.md) guide to get started with the Ceph operator!
+See our [Quickstart](https://github.com/rook/rook/tree/master/Documentation/Getting-Started/quickstart.md) guide to get started with the Ceph operator!
 
 ## Designs
 
-[Ceph](https://docs.ceph.com/en/latest/) is a highly scalable distributed storage solution for block storage, object storage, and shared filesystems with years of production deployments. See the [Ceph overview](storage-architecture.md).
+[Ceph](https://docs.ceph.com/en/latest/) is a highly scalable distributed storage solution for block storage, object storage, and shared filesystems with years of production deployments. See the [Ceph overview](https://github.com/rook/rook/tree/master/Documentation/Getting-Started/storage-architecture.md).
 
 For detailed design documentation, see also the [design docs](https://github.com/rook/rook/tree/master/design).