fix pre-commit-conifg.yaml to let notebooks with pre-ran cells

Author: astjoephysics

.pre-commit-config.yaml

@@ -17,7 +17,7 @@ repos:
         name: Clear output from Jupyter notebooks
         description: Clear output from Jupyter notebooks.
         files: \.ipynb$
-        exclude: ^docs/pre_executed
+        exclude: ^docs/notebooks/.*\.ipynb
         stages: [pre-commit]
         language: system
         entry: jupyter nbconvert --clear-output