Add change log for bhutton-next

Author: jdesrosiers

jsonschema-core.xml

@@ -3891,6 +3891,10 @@ https://example.com/schemas/common#/$defs/count/minimum
             </t>
             <t>
                 <list style="hanging">
+                    <t hangText="draft-bhutton-json-schema-next">
+                        <list style="symbols">
+                        </list>
+                    </t>
                     <t hangText="draft-bhutton-json-schema-01">
                         <list style="symbols">
                             <t>Improve and clarify the "type", "contains", "unevaluatedProperties", and "unevaluatedItems" keyword explanations</t>