Question about inserting a Spotify preview in new music submission

I’d like to add my new single to the community page, and I notice with others they’ve inserted into their post a Spotify “Preview” that plays a segment of their song. I’m not super-well-versed in such things, and having searched around on Spotify and the Google machine, I still don’t know how to make one of those Spotify Previews and insert into my submission. If anybody can give me a tip on how to create one, I’d appreciate it.

Hey there! Thanks for posting.

For Spotify:

1. press the three dots next to the song

2. press share

3. copy song link

4. paste that link straight into the text box