docs(orderBy): correctly is not the right word
docs(orderBy): correctly is not the right word

The use of correctly implies that Angular is doing something incorrect, however it is that we expect a number passed as a string to be sorted as a number. Angular does not do what we are expecting, although it responds correctly to what we have actually asked - sorting based on the string representation of a number.

Closes #12046

ggershoni/angular.js,ggershoni/angular.js,ggershoni/angular.js,ggershoni/angular.js