anchor.diff:      <!-- ... -->
     </plugins>
   </build>
  ---
  +----
   
   
   === Parameters
   
   `sourceDirectory`::
       Directory containing XML schema files. The default is
  -    ${project.basedir}`/src/main/xsd`
  +    `${project.basedir}/src/main/xsd`
   
   `includes`::
       Ant-style patterns used to select XML schema file names from the source
  
positive.code: 
  `outputDirectory`::
      Directory where Avro schema files will be written. The default is
      ${project.build.directory}`/generated-sources/avsc`
  
  `namespace`::
      Namespace for generated Avro named types.
  
negative.code:       <configuration>
          <sourceDirectory>${project.basedir}/src/main/xsd</sourceDirectory>
          <includes>
            <include>fhir-single.xsd</include>
          </includes>
          <outputDirectory>${project.build.directory}/generated-sources/avsc</outputDirectory>
          <namespace>com.example.fhir.model</namespace>
        </configuration>
        <executions>
          <execution>
  