docs more info about fixing broken user reactivity

Author: marshallswain

docs/3.0-major-release.md

@@ -31,6 +31,12 @@ Due to changes in how reactivity is applied to service state (it's now using Vue
 - `user`: returns the reactive, logged-in user from the `userService` specified in the options.
 - `isAuthenticated`: a easy to remember boolean attribute for if the user is logged in.
 
+If you depend on a reactive, logged-in user in your apps, here are the steps to fixing the reactivity:
+
+- Replace any reference to `store.state.auth.user` with `store.state.getters('auth/user')`.
+
+That's it. :)
+
 
 ### Server-Side Pagination Support is Off by Default
 

docs/auth-plugin.md

@@ -44,7 +44,7 @@ It includes the following state by default:
 
 Two getters are available when a `userService` is provided to the `makeAuthPlugin` options.
 
-- `user`: returns the reactive, logged-in user from the `userService` specified in the options.
+- `user`: returns the reactive, logged-in user from the `userService` specified in the options. Returns `null` if not logged in.
 - `isAuthenticated`: a easy to remember boolean attribute for if the user is logged in.
 
 ## Actions