Merge pull request #194 from lab-cosmo/193-small-typo-on-pcovr-docume…

…ntation

fixed small typo in PCovR class documentation

src/skmatter/decomposition/_pcovr.py

@@ -51,7 +51,7 @@ class PCovR(_BasePCA, LinearModel):
 
     For all PCovR methods, it is strongly suggested that :math:`\mathbf{X}` and
     :math:`\mathbf{Y}` are centered and scaled to unit variance, otherwise the
-    results will change drastically near :math:`\alpha \to 0` and :math:`\alpha \to 0`.
+    results will change drastically near :math:`\alpha \to 0` and :math:`\alpha \to 1`.
     This can be done with the companion preprocessing classes, where
 
     >>> from skmatter.preprocessing import StandardFlexibleScaler as SFS