Update validation.md

remove dbt core validation command and add ci semantic validation. slack thread here: https://dbt-labs.slack.com/archives/C03KHQRQUBX/p1722535059304309?thread_ts=1722215844.627059&cid=C03KHQRQUBX

website/docs/docs/build/validation.md

@@ -15,13 +15,16 @@ The code that handles validation [can be found here](https://github.com/dbt-labs
 
 ## Validations command
 
-You can run validations from dbt Cloud or the command line with the following [MetricFlow commands](/docs/build/metricflow-commands):
+You can run validations against the defined semantic model configurations from the command line with the following [MetricFlow commands](/docs/build/metricflow-commands):
+
+Note, in dbt Cloud you don't need to validate the Semantic Layer config separately. Running a dbt command (such as dbt parse, dbt build, dbt compile, dbt run) automatically checks it.
 
 ```bash
-dbt sl validate-configs # dbt Cloud users
 mf validate-configs # dbt Core users
 ```
 
+You can run semantic validations in a CI job to guarantee any code changes made to dbt models don't break these metrics. For more information, refer to [semantic validation in CI](/docs/deploy/ci-jobs#semantic-validations-in-ci).
+
 ## Parsing
 
 In this validation step, we ensure your config files follow the defined schema for each semantic graph object and can be parsed successfully. It validates the schema for the following core objects: