Fix dir name of cookiecutter template output.

.github/workflows/run_template_checks.yml

@@ -24,8 +24,7 @@ jobs:
           pip install cookiecutter
           sed -i 's/"python_version": "3\.[0-9]*"/"python_version": "${{ matrix.python-version }}"/gi' cookiecutter.json
           cookiecutter --no-input ./
-          ls -alh
-          cd design_toolkit_application
+          cd design-toolkit-application
 
       - name: flake8 Lint
         uses: TrueBrain/actions-flake8@v2