Docs: Improve sort-keys (#12791)

* Docs: Improve sort-keys wording

* Docs: Diff sort-keys

… to help sell the feature

docs/rules/sort-keys.md

@@ -1,6 +1,6 @@
 # require object keys to be sorted (sort-keys)
 
-When declaring multiple properties, some developers prefer to sort property names alphabetically to be able to find necessary property easier at the later time. Others feel that it adds complexity and becomes burden to maintain.
+When declaring multiple properties, some developers prefer to sort property names alphabetically to more easily find and/or diff necessary properties at a later time. Others feel that it adds complexity and becomes burden to maintain.
 
 ## Rule Details