docs: clarify dict keys() and values() returns sorted arrays

Author: ePirat

docs/yaml/elementary/dict.yml

@@ -45,8 +45,10 @@ methods:
 
 - name: keys
   returns: list[str]
-  description: Returns an array of keys in the dictionary.
+  description: Returns an array of keys in the dictionary, sorted in ascending order.
 
 - name: values
   returns: list[any]
-  description: Returns an array of values in the dictionary.
+  description: |
+    Returns an array of values in the dictionary, sorted by the
+    corresponding keys in ascending order.