Update validate-notebooks.md typos in documentation

Signed-off-by: Emilio Garcia <iamemilio@users.noreply.github.com>

Author: iamemilio

actions/validate-notebooks/validate-notebooks.md

@@ -28,5 +28,5 @@ jobs:
       - name: Validate Jupyter Notebooks
         uses: ./ci-actions/actions/validate-notebooks
         with:
-          notebook_paths: "notebooks/"
+          path: "notebooks/"
 ```