Update website/docs/cli/commands/terraform/usage.mdx

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

website/docs/cli/commands/terraform/usage.mdx

@@ -59,8 +59,12 @@ HCL-based domain-specific language and its interpreter. Atmos works with [OpenTo
 
 - `atmos terraform clean` command deletes the `.terraform` folder, `.terraform.lock.hcl` lock file, and the previously generated `planfile`
   and `varfile` for the specified component and stack. Use the `--skip-lock-file` flag to skip deleting the `.terraform.lock.hcl` file. 
-  Use the `--everything` flag to delete all the Terraform state files and directories for all components and stacks. 
-  Use the `--force` flag to force the deletion without confirmation.
+  Use the `--everything` flag to delete all the Terraform state files and directories (including `terraform.tfstate.d`) for all components and stacks. 
+  Use the `--force` flag to bypass the safety confirmation prompt and force the deletion (use with caution).
+
+  :::warning
+  The `--everything` flag performs destructive operations that can lead to permanent state loss. Always ensure you have backups before proceeding.
+  :::
 
 - `atmos terraform workspace` command first runs `terraform init -reconfigure`, then `terraform workspace select`, and if the workspace was not
   created before, it then runs `terraform workspace new`