Update based on Review of our Confluence and GitHub assets

- update cloud-infrastructure/storage/block-storage/README.md based on GitHub Product Area Template
	- update URL of showcase-2 to showcase-2
	- update URL of showcase-3 to showcase-3
	- update URL of showcase-4 to showcase-4

Author: HeinzOracle

cloud-infrastructure/storage/block-storage/README.md

@@ -4,7 +4,7 @@ High-performance block storage at any scale.
 
 We've designed our storage platform as an ideal complement to Oracle compute and networking services to support the highest performance requirements. OCI Block Volume uses the latest NVMe SSDs and provides nonblocking network connectivity to every host. Oracle delivers a consistent, low-latency performance of up to 225 IOPS/GB to a maximum of 300,000 IOPS and 2,680 MB/sec of throughput per volume.
 
-Reviewed: 19.01.2024
+Reviewed: 23.01.2024
 
 # Table of Contents
 
@@ -21,9 +21,9 @@ Reviewed: 19.01.2024
 - [OCI Storage Health-Check](https://gitlab.com/hmielimo/oci-storage-health-check/)
 - Showcase section
   - [Showcase 1: Demonstrate block volume backup copy to a different region in a customer managed key environment.](https://gitlab.com/hmielimo/cloud-resilience-by-default/-/tree/main/copy.customer.managed.key.backup)
-  - [Showcase 2: TRIM showcase](asset/Showcase.2)
-  - [Showcase 3: boot/block volume security best practice](asset/Showcase.3)
-  - [Showcase 4: boot/block volume individual (to a customer-managed bucket) backup and restore](asset/Showcase.4)
+  - [Showcase 2: TRIM showcase](showcase-2)
+  - [Showcase 3: boot/block volume security best practice](showcase-3)
+  - [Showcase 4: boot/block volume individual (to a customer-managed bucket) backup and restore](showcase-4)
 
 
 # Useful Links