Add JDK information to the support matrix.

Author: rhusar

docs/src/main/asciidoc/introduction.adoc

@@ -34,11 +34,11 @@ the former name mod_cluster is currently used for container implementation.
 === Container Integration Modules
 
 |===
-| Release | Tomcat versions | Code | Documentation
+|Release |Tomcat versions |Java SE |Code |Documentation
 
-| `2.1` (in development) | `11.0`, `10.1`, `9.0` | https://github.com/modcluster/mod_cluster/tree/main[SCM Branch] | https://docs.modcluster.io/apidocs/2.1/[Javadoc]
-| `2.0` | `10.1`, `9.0`, `8.5` (EOL) | https://github.com/modcluster/mod_cluster/tree/2.0.x[SCM Branch] | https://docs.modcluster.io/apidocs/2.0/[Javadoc]
-| `1.4` |  `9.0`, `8.5` (EOL), `8.0` (EOL), `7.0` (EOL) | https://github.com/modcluster/mod_cluster/tree/1.4.x[SCM Branch] | https://docs.modcluster.io/apidocs/1.4/[Javadoc]
+|`2.1` |`11.0`, `10.1`, `9.0` |17 |https://github.com/modcluster/mod_cluster/tree/main[SCM Branch] |https://docs.modcluster.io/apidocs/2.1/[Javadoc]
+|`2.0` |`10.1`, `9.0`, `8.5` (EOL) |11 |https://github.com/modcluster/mod_cluster/tree/2.0.x[SCM Branch] |https://docs.modcluster.io/apidocs/2.0/[Javadoc]
+|`1.4` |`9.0`, `8.5` (EOL), `8.0` (EOL), `7.0` (EOL) |8 |https://github.com/modcluster/mod_cluster/tree/1.4.x[SCM Branch] |https://docs.modcluster.io/apidocs/1.4/[Javadoc]
 |===
 
 === Apache HTTP modules