Fixed release notes

Author: rijnb

pom.xml

@@ -80,6 +80,7 @@
         <maven-project-info-reports-plugin.version>2.9</maven-project-info-reports-plugin.version>
         <maven-javadoc-plugin.version>2.10.3</maven-javadoc-plugin.version>
         <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
+        <maven-site-plugin.version>3.5.1</maven-site-plugin.version>
         <maven-source-plugin.version>3.0.0</maven-source-plugin.version>
         <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
 
@@ -159,6 +160,12 @@
                 </configuration>
             </plugin>
 
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-site-plugin</artifactId>
+                <version>${maven-site-plugin.version}</version>
+            </plugin>
+
             <!-- Project reports. -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>