Error - incorrect indentation in Bayesian VAR notebook

[NathanielF]

Bayesian Vector Autoregressive Models: https://www.pymc.io/projects/examples/en/latest/time_series/bayesian_var_model.html:

Issue description

A small indentation typo in the calc_ar_stepfunction should be corrected. It doesn't substantially change the results or the notebook. But i don't want to have the error being propagated.

Issue was noted: https://discourse.pymc.io/t/how-to-create-multivariate-ar-1/4160/6

Proposed solution

Will update the notebook and indent the append line.

[NathanielF]

Thanks @OriolAbril!