Use clearer language for differentiating parallelism flags

Co-authored-by: Laura Pacilio <[email protected]>

website/docs/cdktf/cli-reference/commands.mdx

@@ -153,7 +153,7 @@ Options:
   -h, --help                                    Show help                                                                                                                                                                                                                                 [boolean]
 ```
 
-~> **Note:** The `parallelism` flag has a different behavior than the [terraform parallelism flag](https://www.terraform.io/cli/commands/apply#parallelism-n). To set the custom terraform parallelism flag, please use the `--terraform-parallelism` flag instead.
+-> **Note:** The `parallelism` flag has a different behavior than the `terraform-parallelism` flag. The `--terraform-parallelism` flag is equivalent to setting the [`parallelism=n` flag](/cli/commands/apply#parallelism-n) in the Terraform CLI.
 
 **Examples**