FIX: Fix pairing order
FIX: Typo [ci skip]
BUG: signal: Fixed the scaling of the elements in sosfilt_zi.
Merge pull request #3 from WarrenWeckesser/bug-sosfilt_zi

BUG: signal: Fixed the scaling of the elements in sosfilt_zi.
FIX: Add sosfilt(_zi) to module docs [ci skip]