DOC-12380 version fix --> 3.x

Author: RichardSmedley

modules/project-docs/pages/compatibility.adoc

@@ -140,7 +140,7 @@ It is best to upgrade either the SDK or the Couchbase version you are using.
 .Recommended SDK per Server Version Matrix
 [#table_sdk_versions]
 |===
-| | 1.3 | 1.4, 1.5 | 1.6
+| | 3.3 | 3.4, 3.5 | 3.6
 
 | *Server 7.0 - 7.2*
 | *✔*