Update external docs (2020-12-09)
Update external docs (2020-12-09)

martinpitt/cockpit-project.github.io,cockpit-project/cockpit-project.github.io,cockpit-project/cockpit-project.github.io,martinpitt/cockpit-project.github.io,martinpitt/cockpit-project.github.io,cockpit-project/cockpit-project.github.io,cockpit-project/cockpit-project.github.io,martinpitt/cockpit-project.github.io