doc: fix up N-API support matrix

The support matrix was out of date. Update
with current status.

Fixes: nodejs#25801

PR-URL: nodejs#26377
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

doc/api/n-api.md

@@ -145,13 +145,13 @@ available to the module code.
 
 ## N-API Version Matrix
 
-|       | 1       | 2        | 3        |
-|:-----:|:-------:|:--------:|:--------:|
-| v4.x  |         |          |          |
-| v6.x  |         |          | v6.14.2* |
-| v8.x  | v8.0.0* | v8.10.0* |          |
-| v9.x  | v9.0.0* | v9.3.0*  | v9.11.0* |
-| v10.x |         |          | v10.0.0  |
+|       | 1       | 2        | 3        | 4        |
+|:-----:|:-------:|:--------:|:--------:|:--------:|
+| v6.x  |         |          | v6.14.2* |          |
+| v8.x  | v8.0.0* | v8.10.0* | v8.11.2  |          |
+| v9.x  | v9.0.0* | v9.3.0*  | v9.11.0* |          |
+| v10.x |         |          | v10.0.0  |          |
+| v11.x |         |          | v11.0.0  | v11.8.0  |
 
 \* Indicates that the N-API version was released as experimental