Fedibridge

Yes, thank you for sharing! I think it looks good and should be useful to new users. I've bookmarked it.

As for adding anything, this may be too advanced and could detract from what you have written for beginners, but might work as a second article: tips for linking across instances. For example:

• To link to a community so that it opens the reader's local copy on their own instance, use the !communityname@instancename.tld format.
• To find your local instance's copy of a linked comment or post in order to interact with it (comment, upvote, downvote, report, etc), search the linked URL string in your own instance's search to find it.