Fix documentation and validation args

docs/Building-an-OpenSearch-and-OpenSearch-Dashboards-Distribution.md

@@ -32,7 +32,7 @@ Then build from source:
 _Please note that in order to build any plugin, core needs to be build as a dependency for non-snapshot version. Hence, it is recommended to build core along with plugin. Example:_
 ```
 ./build.sh manifests/3.0.0/opensearch-3.0.0.yml --component OpenSearch common-utils
-./build.sh manifests/3.0.0/opensearch-3.0.0.yml --component OpenSearch-Dashboards observabilityDashboards
+./build.sh manifests/3.0.0/opensearch-dashboards-3.0.0.yml --component OpenSearch-Dashboards observabilityDashboards
 ```
 
 Additional arguments:

src/validation_workflow/validation_args.py

@@ -36,7 +36,7 @@ def __init__(self) -> None:
             "--file-path",
             nargs='*',
             action=TestKwargs,
-            help="(manadatory for production) Product URL or file-path to validate",
+            help="(manadatory for production) Product URL or file-path to validate in the format opensearch=<path> and opensearch-dashboards=<path>",
             default={},
             dest="file_path"
         )