Add Cloudsmith (a Package Management SaaS)
Created by: lskillen
Hi! This PR adds a link to Cloudsmith, which is a package management service SaaS. It's commercial, but it is completely free for open-source and it has generous free tiers otherwise. It has first-class support for Alpine Linux, Debian Linux and RedHat Linux packages (and many other package formats, such as Python/Ruby), plus org/teams management, granular access controls, private repositories, repository-specific entitlements, a worldwide content distribution network, webhooks, access logs, etc. Thank you. :-)
Full disclosure: I work at Cloudsmith.