Docs updates

editions/tw5.com/tiddlers/roadmap/RoadMap.tid

@@ -15,6 +15,8 @@ The following additional features are planned or under consideration for impleme
 * Features improving user data integrity
 ** Optional defensive backups with TiddlyFox and TiddlyDesktop
 * Features required for large scale adoption
+** Improve upgrade process
+** Establish plugin library
 ** Proper use of ARIA roles
 * Features required by ~TiddlyWiki hackers
 ** Pretty-printed JSON (similar to http://marianoguerra.github.io/json.human.js/)