Add min/maxContains to Keyword Indepenence list

Author: jdesrosiers

jsonschema-validation.xml

@@ -225,6 +225,8 @@
                     <list>
                         <t>
                             "requiredAllExcept", whose behavior is defined in terms of "properties"
+                            "minContains", whose behavior is defined in terms of "contains"
+                            "maxContains", whose behavior is defined in terms of "contains"
                         </t>
                     </list>
                 </t>