fix maven war plugin, edit readme

spring-security-mvc-socket/README.md

@@ -1,3 +1,10 @@
+To build the project, run the command: mvn clean install. This will build a war file in the target folder that you can deploye on a server like Tomcat.
+
+Alternatively, run the project from an IDE.
+
+To login, use credentials from the data.sql file in src/main/resource, eg: user/password.
+
+
 ### Relevant Articles: 
 - [Intro to Security and WebSockets](http://www.baeldung.com/spring-security-websockets)
 - [Spring WebSockets: Specific User Chat](http://www.baeldung.com/spring-websocket-specific-user-chat)

spring-security-mvc-socket/pom.xml

@@ -151,7 +151,7 @@
     </dependencies>
 
     <build>
-        <pluginManagement>
+      
             <plugins>
                 <plugin>
                     <groupId>org.apache.tomcat.maven</groupId>
@@ -171,7 +171,6 @@
                     </configuration>
                 </plugin>
             </plugins>
-        </pluginManagement>
         <finalName>spring-security-mvc-socket</finalName>
     </build>