Add enforcer for few required files in the project.

pom.xml

@@ -898,6 +898,32 @@
 				</executions>
 			</plugin>
 
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-enforcer-plugin</artifactId>
+				<version>3.0.0-M3</version>
+				<executions>
+					<execution>
+						<id>enforce-files-exist</id>
+						<goals>
+							<goal>enforce</goal>
+						</goals>
+						<configuration>
+							<rules>
+								<requireFilesExist>
+									<files>
+										<file>${project.basedir}/README.md</file>
+										<file>${project.basedir}/LICENSE.md</file>
+										<file>${project.basedir}/CHANGELOG.md</file>
+									</files>
+								</requireFilesExist>
+							</rules>
+							<fail>true</fail>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+
 		</plugins>
 	</build>