Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: zingo

backends/arm/README.md

@@ -209,7 +209,7 @@ Below is an overview of some of the testing options this script provides:
 | `test_arm_backend.sh test_pytest_ops_vkml`         | Runs operator unit tests for VGF specific use-cases.         |
 | `test_arm_backend.sh test_pytest_models_vkml`      | Runs model unit tests for VGF specific use-cases.            |
 | `test_arm_backend.sh test_run_vkml`                | Runs end-to-end unit tests for VGF specific use-cases.       |
-| `test_arm_backend.sh test_model_smollm2-135M`      | Runs some models with Corstone FVP.                          |
+| `test_arm_backend.sh test_model_smollm2_135M`      | Runs some models with Corstone FVP.                          |
 | `test_arm_backend.sh test_smaller_stories_llama`   | Runs E2E model tests on Corstone FVP.                        |
 | `test_arm_backend.sh test_memory_allocation`       | Runs memory allocation tests for Ethos-U specific targets    |