[Standards] XEP-xxxx: Pubsub Node Bookmark

Hello :) A year ago my XEP-xxxx: Pubsub Node Bookmark was merged in Inbox. This XEP define a simple element that points to a Pubsub Node and that can be embeded in a Bookmarks list, it was designed to be close to the XEP-0402: PEP Native Bookmarks <conference/> element. You can see a live version there https://movim.eu/xeps/pubsub-node-bookmark.html . I just submited a tiny PR to fix the examples there https://github.com/xsf/xeps/pull/1565 I'd like to have feedback on it and if possible publish it as we would like to use it extensively in the Spaces and in Movim to replace the historical https://xmpp.org/extensions/xep-0330.html in the upcoming weeks. Regards, edhelas