Update presto-docs/src/main/sphinx/plugin/open-telemetry.rst

Co-authored-by: Steve Burnett <[email protected]>

Author: sureshbabu-areekara

presto-docs/src/main/sphinx/plugin/open-telemetry.rst

@@ -16,7 +16,7 @@ Configuration properties
 Property Name                                Description
 ============================================ =====================================================================
 ``tracing-factory.name``                     Unique identifier for factory implementation to be registered.
-``tracing-enabled``                          Boolean value controlling if tracing is on or off
+``tracing-enabled``                          Boolean value controlling if tracing is on or off.
 ``tracing-backend-url``                      URL of the backend for exporting telemetry data.
 ``max-exporter-batch-size``                  Maximum number of spans to export in one batch.
 ``max-queue-size``                           Maximum number of spans to queue before processing for export.