[hhfrancois]

plug presented as what it does on any cluster, rather than through one platform.

• Site rendered at build time. Every page has an address of its own without the hash, its title, description and canonical link on plug.softwarity.dev, and is listed in sitemap.xml; robots.txt added. Links from the hash era, including those the CLI and the agent print, land on the page they name.
• README in a new order: the promise without a platform, the problem, one command, what you get, the platforms with equal weight and a link to the coverage matrix, install (commands unchanged), limits, security, license (unchanged), documentation.
• Security on the first screen: open by default, Docker socket on Docker platforms, install over SSH, dev and staging clusters only.
• Docs: an Install page per platform; "Docker, Compose & Swarm" and "Kubernetes & OpenShift" named as such; the DNS forwarding and update policy the README carried; the comparison rewritten from the other tools' public documentation.

No product code, workflow or GitHub setting changed.