Merge pull request #673 from luvarqpp

* gh-673:
  Polish "Add snapshot plugin repository to Data REST sample"
  Add snapshot plugin repository to Data REST sample

Closes gh-673

Author: wilkinsona

samples/rest-notes-spring-data-rest/pom.xml

@@ -133,5 +133,15 @@
 			</snapshots>
 		</repository>
 	</repositories>
+	<pluginRepositories>
+		<pluginRepository>
+			<id>spring-snapshots</id>
+			<name>Spring snapshots</name>
+			<url>https://repo.spring.io/libs-snapshot</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</pluginRepository>
+	</pluginRepositories>
 
 </project>