anchor.diff:  
   As usually with Maven, configuration properties can either be defined directly in the Confluence Publisher maven plugin
   configuration, defined as separate Maven properties, read from the `settings.xml` or passed as system properties with
  -help of `-Dasciidoc-confluence-publisher.` prefix when invoking
  +help of `-Dasciidoc-confluence-publisher.` prefix.
   
   
   == Maven Plugin Execution
  
positive.code: | mandatory, if serverId is not specified
  
  | serverId
  | the id of the server defined in settings.xml
    +
    +
    _Note:_ see https://maven.apache.org/guides/mini/guide-encryption.html[Maven Password Encryption Guide] for details
    how to setup a server with username and encrypted password.
  | optional (defaults to empty)
  
  | publishingStrategy
  a| The strategy to use when publishing to confluence. Possible values:
  
negative.code:   </plugins>
  </build>
  ----
  
  When relying on Maven support for encrypted credentials using the `serverId` configuration property, username and password need to be defined in `settings.xml`:
  
  [source, xml]
  .settings.xml
  