Issue #10: Update archetype for UIMA 3 OSGi combination

- update readme

README.md

@@ -12,7 +12,7 @@ Project template to bootstrap UIMA Ruta annotators and package them as a PEAR pa
 There is no need to clone this repo to generate a new Ruta annotator project. Just execute the following command:
 
 ```
-mvn archetype:generate -DarchetypeGroupId=de.averbis.textanalysis -DarchetypeArtifactId=ruta-pear-archetype -DarchetypeVersion=2.0.0-SNAPSHOT
+mvn archetype:generate -DarchetypeGroupId=de.averbis.textanalysis -DarchetypeArtifactId=ruta-pear-archetype -DarchetypeVersion=2.0.0
 ```
 You need to define a [groupId, artifactId and version](https://maven.apache.org/guides/mini/guide-naming-conventions.html) for your UIMA Ruta annotator project. 
 
@@ -60,7 +60,14 @@ my-ruta-annotator/
 ├── pom.xml
 └── src
     ├── main
+    │   ├── java
+    │   │   └── com
+    │   │       └── example
+    │   │           └── nlp
+    │   │               └── GenerateConfiguredDescriptorTemplate.java
     │   ├── resources
+    │   │   ├── descriptor
+    │   │   │   └── GeneratedBasicEngine.xml
     │   │   └── META-INF
     │   │       └── org.apache.uima.fit
     │   │           └── types.txt