docs update deprecations list

Author: marshallswain

docs/3.0-major-release.md

@@ -63,10 +63,16 @@ export default {
 
 This behavior exactly matches the new `useFind` utility.
 
-## One Deprecation
+## Deprecations
+
+### The `keepCopiesInStore` Option
 
 The `keepCopiesInStore` option is now deprecated.  This was a part of the "clone and commit" API which basically disabled the reason for creating the "clone and commit" API in the first place.
 
 If you're not familiar with the Feathers-Vuex "clone and commit" API, you can learn more about the [built-in data modeling](./model-classes.md) API and the section about [Working with Forms](./feathers-vuex-form-wrapper.md#the-clone-and-commit-pattern).
 
-The `keepCopiesInStore` feature is set to be removed in Feathers-Vuex 4.0.
+The `keepCopiesInStore` feature is set to be removed in Feathers-Vuex 4.0.
+
+### Auth `user` State
+
+As described, earlier on this page, since the Auth Plugin's `user` state is no longer reactive and has been replaced by a `user` getter that IS reactive, the `user` state will be removed in the Feathers-Vuex 4.0.