pom.xml plugin update

[piyushbajaj0704]

Please add the below code to the POM.xml for the successful build when running the cmd "mvn site"

		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-site-plugin</artifactId>
			<version>3.7.1</version>
		</plugin>

[tawalaya]

Can you go into detail why the rationale behind the GitHub one was so that the artifacts could be deployed using Github pages. See this https://github.com/github/maven-plugins.