Update release instructions

to point to new docs site and to Maven Central

Author: marko-bekhta

MAINTAINERS.md

@@ -163,9 +163,9 @@ If you **added a new Maven module** that should be included in the distribution,
 ### Performing the release
 
 Once you trigger the CI job, it automatically pushes artifacts to the
-[OSSRH repository manager](https://oss.sonatype.org/#stagingRepositories),
+[Maven Central](https://central.sonatype.com/),
 the distribution to [SourceForge](https://sourceforge.net/projects/hibernate/files/hibernate-search/)
-and the documentation to [docs.jboss.org](https://docs.jboss.org/hibernate/search/).
+and the documentation to [docs.hibernate.org](https://docs.hibernate.org/search/).
 
 * Transfer the released issues in JIRA to the "Closed state":
   * Go to [the list of releases](https://hibernate.atlassian.net/projects/HSEARCH?selectedItem=com.atlassian.jira.jira-projects-plugin%3Arelease-page)