Update Bean Validation version in reference docs
Closes
@@ -1146,7 +1146,7 @@ To take complete control of constraint resolution, you can use your own implemen
[[documenting-your-api-constraints-describing]]
==== Describing Constraints
-Default descriptions are provided for all of Bean Validation 2.0's constraints:
+Default descriptions are provided for all of Bean Validation 3.0's constraints:
* `AssertFalse`
* `AssertTrue`
