Update parent title for install and configure benchmark pages (opensearch-project#10686)

Signed-off-by: Fanit Kolchina <kolchfa@amazon.com>
Signed-off-by: Konstantin Nebel <konnebel@gmx.de>

Author: kolchfa-aws

_benchmark/user-guide/install-and-configure/configuring-benchmark.md

@@ -3,7 +3,7 @@ layout: default
 title: Configuring
 nav_order: 7
 grand_parent: User guide
-parent: Install and configure
+parent: Install and configure OpenSearch Benchmark
 redirect_from:
   - /benchmark/configuring-benchmark/
   - /benchmark/user-guide/configuring-benchmark/

_benchmark/user-guide/install-and-configure/installing-benchmark.md

@@ -3,7 +3,7 @@ layout: default
 title: Installing
 nav_order: 5
 grand_parent: User guide
-parent: Install and configure
+parent: Install and configure OpenSearch Benchmark
 redirect_from:
   - /benchmark/installing-benchmark/
   - /benchmark/user-guide/installing-benchmark/