Here is how you prepare your plugins for the addonpack:
Provide a Node Info
Make sure to provide a meaningful description for your nodes via the plugininfo attributes
This information will help users find/choose nodes in the NodeBrowser and in the node reference.
Follow the conventions
If your plugin is based on an external library or code that has a license attached, please don't forget to mention that. put the license in a file called:
license-mypluginname.txt and place it in your plugins directory. from there the buildprocess will automatically copy it to \plugins\licenses for the enduser to see.
Please make sure to consult Conventions.HelpPatch and place a correctly named help patch in the lib\nodes\plugins directory.