Standardize how the associate method is used.

[Rick-Kirkham]

This section of the keyboard shortcuts article, Create a mapping of actions to their functions, tells users to pass an anonymous function as the 2nd parameter to the associate() method. This is a workable, but differs from other places in the platform docs where we use associate(). We should change these examples so that they create a named function and pass the name as the 2nd parameter. This is the way we do it for function commands as shown in: Create the code for the function command.

This will also have the advantage making it simpler to show how a function command can be linked to a keyboard shortcut and a ribbon button.