docs: Minor formatting fix (#148)

* docs: Minor formatting fix

PiperOrigin-RevId: 559474510

Source-Link: googleapis/googleapis@5b3202b

Source-Link: https://github.com/googleapis/googleapis-gen/commit/7b6e92108513d0ff21614e0da6fc8279161e55a3
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* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

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google/cloud/optimization_v1/types/fleet_routing.py

@@ -3647,12 +3647,9 @@ class AggregatedMetrics(proto.Message):
         total_duration (google.protobuf.duration_pb2.Duration):
             The total duration should be equal to the sum of all
             durations above. For routes, it also corresponds to:
-
-            ::
-
-               [ShipmentRoute.vehicle_end_time][google.cloud.optimization.v1.ShipmentRoute.vehicle_end_time]
-               -
-               [ShipmentRoute.vehicle_start_time][google.cloud.optimization.v1.ShipmentRoute.vehicle_start_time]
+            [ShipmentRoute.vehicle_end_time][google.cloud.optimization.v1.ShipmentRoute.vehicle_end_time]
+            ``-``
+            [ShipmentRoute.vehicle_start_time][google.cloud.optimization.v1.ShipmentRoute.vehicle_start_time]
         travel_distance_meters (float):
             Total travel distance for a route or a
             solution.

samples/generated_samples/snippet_metadata_google.cloud.optimization.v1.json

@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-optimization",
-    "version": "1.4.3"
+    "version": "0.1.0"
   },
   "snippets": [
     {