fix docs pipeline

Author: lukaspie

.github/workflows/build_docs.yml

@@ -31,10 +31,7 @@ jobs:
       - name: Check spelling
         uses: streetsidesoftware/cspell-action@v7
         with:
-          files: 
-            - "docs/**/*.md"
-            - "README.md"
-          config: cspell.json
+          files: "docs/**/*.md README.md"
           strict: true
           incremental_files_only: false