Upgrading external-core tiddlyhost files

I feel like those instructions keep reverting to node.js, even though the targeted section is for stand-alone TW. Most people are not going to want to launch node.js just to create a stand-alone wiki. In any event, if you scroll up the instruction tiddler, you’ll see the button to export the core. I think for most people with standalone wikis, these instructions will be more useful: