Document that min/maxContains can be zero

jdesrosiers · jdesrosiers · commit 3ecd694a6b20 · 2021-10-18T14:27:36.000-07:00
diff --git a/source/reference/array.rst b/source/reference/array.rst
@@ -278,7 +278,8 @@ minContains / maxContains
 
 ``minContains`` and ``maxContains`` can be used with ``contains`` to
 further specify how many times a schema matches a ``contains``
-constraint.
+constraint. These keywords can be any non-negative number including
+zero.
 
 .. schema_example::
 
