Link typo in Closed loop stability → Routh array

[pierre-haessig]

Hi!

I just came across your great collection of notebooks (almost a textbook in fact). While reading, I noticed a typo in the last link of

https://dynamics-and-control.readthedocs.io/en/latest/2_Control/2_Laplace_domain_analysis_of_control_systems/Stability%20analysis.html

How can we determine stability without calculating the roots? See the next notebook.

This link is broken because it should be point to SymPy Routh Array.html (capital case in Sympy + extension). I guess that for the extension there is a tradeoff between having it work in the html export versus in the actual collection of notebook files.