Improve the instructions for building and running the simulator:

- Add plugin to pom.xml config to simplify running (with automatic config of classpath).
- Update README.md

README.md

@@ -1,2 +1,23 @@
 # DominionSim
-There is a pom.xml which you'll need because there are some dependencies on jars (eg jfreechart).
+
+DominionSim is a simulator for the Dominion card game.
+
+## Prerequisites
+
+You will need the following to build and run the simulator:
+- Java SE SDK 1.8+: http://www.oracle.com/technetwork/java/javase/downloads
+- Maven: https://maven.apache.org/download.cgi
+
+## Build
+
+To build the simulator JAR file:
+```
+$ mvn package
+```
+
+## Run
+
+To run the simulator:
+```
+$ mvn exec:java
+```

pom.xml

@@ -27,6 +27,16 @@
     </dependencies>
 
     <build>
+      <plugins>
+         <plugin>
+           <groupId>org.codehaus.mojo</groupId>
+           <artifactId>exec-maven-plugin</artifactId>
+           <configuration>
+                <mainClass>be.aga.dominionSimulator.DomEngine</mainClass>
+           </configuration>
+         </plugin>
+     </plugins>
+
         <resources>
             <resource>
                 <directory>${basedir}/src/main/java</directory>
@@ -39,4 +49,4 @@
         </resources>
     </build>
 
-</project>
+</project>