Corrected the name of the flag.

Author: elongl

docs/understand-elementary/cli-commands.mdx

@@ -76,7 +76,7 @@ Here is a list of all the available options:
   Choose a specific target in case you have multiple targets for your dbt project.
 
 ```shell
---project_profile_target <target_name>
+--project-profile-target <target_name>
 ```
 
 - **Slack webhook URL:**