example doc: further updates before spell checking

Signed-off-by: Stephen Lawrence <[email protected]>

examples/vehicle-speed-downsample-iotdb/README.md

@@ -154,7 +154,7 @@ In this How-To we will use the IoTDB CLI client to send SQL commands on its comm
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 ### Down-sample the data
-In the previous steps we imported the dataset `vehicle_speed_rl_dataset.csv` into the timeseries `` root.test2.vin123test.`Vehicle.Speed` `` in IoTDB. Now we will down-sample the timeseries using an SQL query and the `Sample` function. The queries will be executed in the IoTDB CLI client.
+In the previous steps we imported the dataset `vehicle_speed_rl_dataset.csv` into the timeseries `` root.test2.vin123test.`Vehicle.Speed` `` in IoTDB. Now we will down-sample the timeseries using an SQL query that uses the `Sample` function. The queries will be executed in the IoTDB CLI client.
 
 SQL queries can contain a wide range of optional clauses to determine the data that is processed. For example, you can limit the query to a specific time range to isolate a specific journey for the [example scenario](#example-scenario-journey-analysis) at the start of this document.