Add initial readme.md file.
diff --git a/pom.xml b/pom.xml
index 90b219e..ac97c92 100644
--- a/pom.xml
+++ b/pom.xml
@@ -72,6 +72,15 @@
                     </archive>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.rat</groupId>
+                <artifactId>apache-rat-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>readme.md</exclude>
+                    </excludes>
+                </configuration>
+            </plugin>            
         </plugins>
     </build>
     
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..f17cae2
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,15 @@
+# Feature Model Application Builder
+
+Build an Application Definition from one or more Feature Files.
+
+The Application Builder can be run from the command line by executing the following command:
+
+```
+java org.apache.sling.feature.applicationbuilder.impl.Main
+```
+
+For example:
+
+```
+java org.apache.sling.feature.applicationbuilder.impl.Main -d <directory with feature files> -u ~/.m2/repository -o generated-app.json
+```
\ No newline at end of file