Update target_database.md (#5231)

Hi.
This modification proposal is intended to correct a typo. Regards.
IL.

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website/docs/reference/resource-configs/target_database.md

@@ -76,7 +76,7 @@ snapshots:
 Leverage the [`generate_database_name` macro](/docs/build/custom-databases) to build snapshots in databases that follow the same naming behavior as your models.
 
 Notes:
-* This macro is not available when configuring from the `dbt_project.yml` file, so must be configured in a snapshot config block.
+* This macro is not available when configuring from the `dbt_project.yml` file, so it must be configured in a snapshot config block.
 * Consider whether this use-case is right for you, as downstream `refs` will select from the `dev` version of a snapshot, which can make it hard to validate models that depend on snapshots.
 
 <File name='snapshots/orders_snaphot.sql'>