Update architecture.mdx

Author: ftouserkani-edb

advocacy_docs/edb-postgres-ai/hybrid-manager/overview/architecture.mdx

@@ -40,7 +40,7 @@ For more robust, multi-availability zone recovery, Barman Cloud backups can be s
 Alternatively, local object stores might require additional configuration to ensure backups are replicated to remote sites.
 Stretch clusters mitigate these limitations by enabling data replication and redundancy across geographically dispersed locations.
 
-### High Availability and resilience
+### High Availability and resiliency
 
 HM leverages Kubernetes' proven technologies to ensure high availability through automated failover mechanisms.
 These mechanisms function within stretch clusters, across availability zones, or between zones in the same region.