Update how to deploy

Author: rbygrave

howto-deploy-to-central.md

@@ -16,7 +16,7 @@ mvn -T 4 deploy -pl '!composites,!platforms' -Pcentral -DskipTests
 
 ## git commit, git tag, git push --tags
 git commit -am 'Version 16.0.0-RC4'
-git tag 16.0.0-rc3
+git tag 16.0.0-RC4
 git push --tags
 
 ## convert to javax