fixed: Logarithms->MyMaths in text

Author: xhudik

docs/docs/reference/other-new-features/opaques.md

@@ -32,13 +32,13 @@ end MyMath
 
 This introduces `Logarithm` as a new abstract type, which is implemented as `Double`.
 The fact that `Logarithm` is the same as `Double` is only known in the scope where
-`Logarithm` is defined which in the above example corresponds to the object `Logarithms`.
+`Logarithm` is defined which in the above example corresponds to the object `MyMath`.
 Or in other words, within the scope it is treated as type alias, but this is opaque to the outside world
 where in consequence `Logarithm` is seen as an abstract type and has nothing to do with `Double`.
 
 The public API of `Logarithm` consists of the `apply` and `safe` methods defined in the companion object.
 They convert from `Double`s to `Logarithm` values. Moreover, an operation `toDouble` that converts the other way, and operations `+` and `*` are defined as extension methods on `Logarithm` values.
-The following operations would be valid because they use functionality implemented in the `Logarithms` object.
+The following operations would be valid because they use functionality implemented in the `MyMath` object.
 
 ```scala
 import MyMath.Logarithm