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

@@ -23,5 +23,5 @@ Property Name                                Description
 ``schedule-delay``                           Delay between batches of span export, controlling how frequently spans are exported
 ``exporter-timeout``                         How long the span exporter waits for a batch of spans to be successfully sent before timing out.
 ``trace-sampling-ratio``                     Double between 0.0 and 1.0 to specify the percentage of queries to be traced.
-``span-sampling``                            Boolean to enable/disable sampling. If enabled, spans are only generated for major operations
+``span-sampling``                            Boolean to enable/disable sampling. If enabled, spans are only generated for major operations.
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