Clarify contributions of new content

[BretFisher]

Maybe in the main README.md or the contributing.md, let's clarify:

Do you have an idea for a Swarm Tip or post to help others? Great, however:

Awesome Lists aren't supposed to have actual content. Like Wikipedia, ALs just reference data from other places, not generating new ideas/content.

So, post something elsewhere, and create a PR here if you think it's Awesome enough to list:

• Anyone can make a well-formed Gist
• Make a post at https://swarmkit.org
• Other ways, make a Mastodon post, DEV, or GitHub Pages post. Anything with a perm URL that some corporate entity will eventually sunset access to or slap a random paywall/login in front of.

P.S. We don't like Medium. It might seem easy to post to, but avoid it. Some of us are so anti-medium we usually won't reference articles there. Stay in control of your content. Random paywalls prevent others from consuming it, and we wouldn't want to recommend content that people think is free, but isn't.

More on "No Medium":

• https://nomedium.dev/
• https://twitter.com/BretFisher/status/1206766086961745920