Update GeneralEfficientFrontier.rst (#630)

typo in CVaR explanation

Author: avances123

docs/GeneralEfficientFrontier.rst

@@ -103,7 +103,7 @@ thought of as the average of losses that occur on "very bad days", where "very b
 :math:`\beta`.
 
 For example, if we calculate the CVaR to be 10% for :math:`\beta = 0.95`, we can be 95% confident that the worst-case
-average daily loss will be 3%. Put differently, the CVaR is the average of all losses so severe that they only occur
+average daily loss will be 10%. Put differently, the CVaR is the average of all losses so severe that they only occur
 :math:`(1-\beta)\%` of the time. 
 
 While CVaR is quite an intuitive concept, a lot of new notation is required to formulate it mathematically (see