Add ZeenMC

[bieelsiurr]

Type of change

• Add new directory for a server
• Update directory of a server
• Documentation Update

Checklist

• I have read the README doc
• I have compressed the images appropriately (e.g. on https://tinypng.com)
• I have created the manifest.json with the required values

Further comments

[github-actions]

Just as an information:
Your server play.zeenmc.es could be offline.
In general, we only accept pull requests from servers, that are online. Please change this, otherwise we cannot review your server correctly and have to deny the pull request.

If your server is currently online, then our api returned a wrong status, we will have a look at it :)

Reference: API URL (https://api.mcsrvstat.us/2/play.zeenmc.es)