Update README.md

Author: paulrutter

http/README.md

@@ -443,6 +443,7 @@ properties can be used (some legacy property names still exist but are not docum
 | `org.apache.felix.http.jetty.threadpool.max`             | The maximum number of threads in the Jetty thread pool. Default is unlimited. Works for both platform threads and virtual threads (Jetty 12 only).                                                                                                                                                                                                                                                                                                                   |
 | `org.apache.felix.http.jetty.virtualthreads.enable`      | Enables using virtual threads in Jetty 12 (JDK 21 required). Default is false. When enabled, `org.apache.felix.http.jetty.threadpool.max` is used for a bounded virtual thread pool.                                                                                                                                                                                                                                                                                 |
 
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 ### Multiple Servers
 
 It is possible to configure several Http Services, each running on a different port. The first service can be configured as outlined above using the service PID for `"org.apache.felix.http"`. Additional servers can be configured through OSGi factory configurations using `"org.apache.felix.http"` as the factory PID. The properties for the configuration are outlined as above.