changed the title with Solutions (#457)

Signed-off-by: shanrajad23 <[email protected]>

src/toc-use-case.md

@@ -1,8 +1,8 @@
-# Tanzu Solution Workbooks
+# Tanzu Solutions Workbooks
 
-This is the table of contents from which the Tanzu Solution Workbooks Documentation site is built.
+This is the table of contents from which the Tanzu Solutions Workbooks Documentation site is built.
 
-- [Tanzu Solution Workbooks](./reference-designs/index-use-case.md)
+- [Tanzu Solutions Workbooks](./reference-designs/index-use-case.md)
     - [High Availability Failover in PostgreSQL backed by Tanzu](./reference-designs/postgres-sql.md)
     - [Exposing TAP Workloads Outside the Cluster Using AVI L4/L7](./solution-workbooks/tap-workloads-avi-l4-l7.md)
     - [Backing Up & Restoring VMware SQL with MySQL Instances for TAS](./solution-workbooks/backup-vmwaresql-tas.md)