Clarify that rootOf() goes all the way up the chain of spaces.

README.md

@@ -366,9 +366,9 @@ isSpace({}); // returns false
 
 Parameter: A space
 
-Returns: The the deepest root space associated with the given space.
+Returns: The root space associated with the given space.
 
-**Note**: Returns the latest root space of the passed in space. This means you can safely do `rootOf(space)` anywhere in a custom action, and always get the latest version.
+**Note**: This function goes all the way up in the chain of parent spaces, returning the latest root space of the parameter. This means you can safely do `rootOf(space)` anywhere in a custom action, and always get the latest version.
 
 ```js
 import { createSpace, rootOf } from 'spaceace';
@@ -389,8 +389,6 @@ Parameter: A space
 
 Returns: The newest copy of the space, at the same level.
 
-**Note**: This is a sister function of `rootOf(space)`, however where `rootOf(space)` returns the deepest root, this one returns the newest copy of the current level.
-
 ```js
 import { createSpace, newestSpace } from 'spaceace';
 

test/main.js

@@ -115,7 +115,7 @@ describe('Space', function() {
         assert.strictEqual(rootOf(this.space.characters[0]), this.space);
       });
 
-      it('returns the deepest root space', function() {
+      it('goes all the way up the chain of parent spaces', function() {
         assert.strictEqual(rootOf(this.space.userInfo.location), this.space);
       });