v2.0.1

Bug Fixes

• fix(nelder-mead): argsort before early exit @jmoralez (#984)
• fix(arima): handle zero sigma2 in CSS method @andrewscottm (#960)
• fix(arima): initialize residuals to zero for CSS @jmoralez (#959)

Documentation

• Typo: Removed mean with fitted in doc string of `predict_in_sampl… @Gunnvant (#978)
• docs(readme): add TBATS and MFLES @jmoralez (#954)
• docs(README): update pandas freq @jmoralez (#951)

Enhancement

• enh(SES): improve implementation @christophertitchen (#973)
• enh: migrate theta to c++ @jmoralez (#955)