[Reliability Bayesian pymc-devs#474] updated myst notebook metadata

Signed-off-by: Nathaniel <[email protected]>

Author: NathanielF

examples/case_studies/reliability_and_calibrated_prediction.myst.md

@@ -4,7 +4,6 @@ jupytext:
     extension: .md
     format_name: myst
     format_version: 0.13
-    jupytext_version: 1.13.7
 kernelspec:
   display_name: Python 3.9.0 ('pymc_ar_ex')
   language: python