Readme: Show maven coordinates.

Author: teetrinkers

README.md

@@ -1,3 +1,14 @@
 # SimpleXML
 
 This is an initial check in of code for the library hosted at http://simple.sourceforge.net. It contains quite a bit of rubbish, however the core is structured in a fairly standard manner where all source code and tests live under the src directory.
+
+## Maven Central
+
+This fork is available on Maven Central:
+
+    <dependency>
+      <groupId>com.subshell.simpleframework</groupId>
+      <artifactId>simple-xml</artifactId>
+      <version>2.8.1</version>
+    </dependency>
+