more detailed release step information.

Author: stonier

Readme.md

@@ -4,10 +4,31 @@ This package is a generator of rosjava message artifacts for core ros messages.
 
 ### Adding Packages
 
-If you would like to add a package to this list, please modify
-both CMakeLists.txt, package.xml appropriately and send us a pull request!
+If you would like to add a message dependency to this list, first consider
+if it is a worthwhile candidate:
+
+* It is a direct dependency for rosjava/android
+* It is a popular and stable dependency that will require little maintenance
+
+Then to actually add the dependency:
+
+* add the message dependency to package.xml
+* add the message dependency to CMakeLists.txt
+* create a pull request
+* update the changelog and bump the version number in package.xml
+* tag it with the new version number
+* release
+
+### Rereleasing Version Changes
+
+When the underlying message dependency version numbers shift, this will
+require a rebuild of this package:
+
+* update the changelog and bump the version number in package.xml
+* tag it with the new version number
+* release
 
 ### More Information
 
-http://wiki.ros.org/rosjava/Tutorials/indigo/RosJava Message Artifacts
+* [RosJava Message Artifacts](http://wiki.ros.org/rosjava/Tutorials/indigo/RosJava Message Artifacts)