use correct path to cname file

Author: mfleisch

.github/workflows/pr-build-check.yaml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Remove CNAME for Preview Deployment
-        run: rm CNAME
+        run: rm ./docs/CNAME
 
       - name: Setup Ruby and Install Gems
         uses: ruby/setup-ruby@v1