Add a new Tier on the Open Collective page

[freearhey]

Currently, there are two ways to financially support the iptv-org project through Open Collective: a minimum monthly donation of $2, or a one-time contribution.

I’d like to propose adding a third option in the form of a sponsorship, which would include the ability to pin any one link in the awesome-iptv to the top of the list for a month and additionally highlight it with the Sponsored tag.

For developers, this will be an additional opportunity to draw attention to their project, and for the iptv-org team, it will serve as an extra motivation to devote even more time to supporting the project.